There are many misconceptions about commercial photography in the areas of pricing, practices, marketing, and organizations.
Organizations: Photographic association may have some pricing guides, however, they are non-specific to every photographer's market conditions, quality output, overhead expenses, lifestyle and income requirements. That is why their price guidelines can only begin to serve as a vague or very generalized idea or a format for a price schedule but the numbers need to be your own, extracted from your own circumstances.
Just for your information- The ASMP deals mostly with issues and rates for MEDIA photographers. It used to be called the America Society of Magazine Photographers- now the "mM" is for media. The P.P. of A does have many members who are commercial and Industrial Photographers. Membership in these organizations do have their benefits but pricing has to be formulated on an individual basis. Remember, these are not guilds of unions, there are no minimums or collective bargaining. In Canada, the P.P.O.C. had to issue it's price guides in a specific format indicating "Low, Middle and High rates based on gathering statistics from its members, otherwise, a set price or rate could be considered price fixing by the Competition Commission. At one time tried to publish such a guide for new photographers and we got a whole bunch of guys with briefcases- investigators. One of the non-members thought we were trying to fix prices and called the government. They came and went away!
Businesses are not necessarily used to paying high prices for everything unless there is perceived value. Many otherwise business-savvy folks have no idea as to the costs and value in professional photography, especially if they don't use professional photographic services on a regular basis. Part of the sales and marketing job of the photographer is to educate and familiarize potential clients with the benefits of attractive imagery that will create interest and desire for the products and services. I have encountered may successful and smart business folks who believe that we just come in with a camera around our neck and "snap" pictures. They have to be familiarized with the process and most importantly be impressed with your portfolio- seeing is believing. Many of my clients are surprised and impressed with the equipment we bring in, the painstaking approach to the work, the way we set things up and of course, the results.
When I am asked for a price quotation on any job, I need to know exactly what needs to be done. Folks are used to that- they know that the can't just say "how much do you charge to finish a basement, fix a car or erect a fence, or whatever, without the specifics and expect a real estimate or a valid quotation for a customized job.
The prices of stock photography have nothing to to with customized, specific or personalized service work. Stock agencies are selling generic images on an non-exclusive bases to a mass market. The commercial photographer is usually creating exclusive imagery which is only of value to each individual client.
Pictures for a winery can be product shots, industrial shots of the plant or ongoing processes. The job could entail images of people at work, portraits of the principals, exterior views of the plant or vineyards? The product shots could be simple or more thematic illustrations that include props, atmosphere and/or models. The COLOR of wine is important- it may require detailed and precise transillumination. Glass bottles and sometimes metallic labels required special lighting.
The astute commercial photographer has to be in a constant learning experience. Until I started shooting food and beverages, I knew nothing about wine. I don't drink any alcohol- never acquired the taste! The kosher wine I knew as a kid, tasted like cough syrup and the hard stuff (booze) tasted and smelled like my mom's nail polish remover! Grandpa's home-made vodka was like cleaning fluid. I still don't drink but now I know about color, bouquet, petulance, and all that wine connoisseur stuff- at least the part that has to do with visual appearance. Before to me, it all looked like water, yellow soda, Mercurochrome (antiseptic) or red ink- now I know the differences. It takes time to consult with the clients- if you have the product knowledge it will show up in the images.
Alright- I did some work for a medical nuclear energy corporation- the technology there was "way above my pay rate"- no nuclear physicist am I. I just had to make the machinery look impressive and remember not to touch the radioisotopes that were being dispensed from one of the devices.