I want to do all the post processing I do at home when I'm traveling.

First of all, it's obvious that some of the responders suggesting getting a 17" laptop have never traveled with them except by car. That size machine is considered a desktop alternative and not really designed for portability. Another suggested a iPad which is totally useless for any serious post processing. The two criteria that I look for are weight and storage. I have been spending many months away from home lately traveling to all parts of the world and have been using a three year old Dell Latitude e7240 12" laptop running Windows 10. This is considered a business grade (more durable for travel) machine that has an I7 processor 8GB memory, 1TB of solid state storage, and weighs in at just under 3 pounds. It has all my post processing software and plenty of room to store my images. When I get home I just transfer the image folders to my NAS box and I'm good to go. I also carry a USB powered external drive for an additional level of backup.

Most smaller laptops use SSDs and generally start with 128GB or 256GB. From personal experience I can tell you that you need at least 500GB which will add to the price. I also consider the machine I use a traveling PC and don't really use it when I'm at home. Here's a link to the current model http://www.dell.com/en-us/work/shop/dell-laptops-and-notebooks/latitude-12-7000-series-e7270/spd/latitude-e7270-ultrabook/cto03le727012us

I’m sure that taxes are baked into the price of everything but a GST is a Goods and Services Tax and is like a sales tax paid by the consumer.

Unless your country is really different, the consumer pays the tax and not the business. That would not be a reason for a price increase.

It's a business decision if they increase their price and not because they think they have you "hooked".

If you were paying $9.99 AUD then you were getting a deal as that's about $13 USD and we still pay $9.99 here in the US. If Adobe needs to increase their price they will because that's a business decision and not because they don't like you. As far as the 15% GST goes, that's the price you pay for socialism.

If it states Arca swiss compatibility it should be compatible. I've used Arca style mounts, plates, heads, L-brackets from many different manufacturers and they all work together just fine. As far as Manfrotto goes, their mounts have been proprietary and not compatible. Maybe they have wised up and will be going to the Arca style mount.

I did not have to reinstall any plugins.

Yes

I have been using the 28-300 quite extensively the past two years having shot at least 40k images with it on my Canon 5D III. The only other option for that focal length range is the Canon 28-300 L which is much heavier and way more expensive. The Tamron is a great travel lens. As far as sharpness goes its good enough for me but not perfect. Here’s an example.

The package that you get for free today originally was $600 because it worked on both Lightroom and Photoshop. The Lightroom plugins by themselves were $150 (or so).

Because the software still works and it's free.

Which ones would those be?

Emirates is a first class experience even in coach. The service is excellent, the flight attendants are youthful, and their equipment is modern. I avoid US carriers at all cost and only fly Southwest domestically.

Ship to Africa. Now that sounds like a winner.