jerry43 wrote:
cosco has a D5500 in that price range and it comes with 2 lenses
D5500 requires AF-S or AF-P lenses to be able to autofocus. Same is true of all the D3000-series and D5000-series Nikon.
If the original poster has older AF Nikkors, they will be manual-focus-only on those cameras. Also should check the lens/camera compatibility charts at Nikon website or Nikonians.org, just to be sure there aren't any metering or other issues with any vintage lenses they use.
D7000-series or higher models are needed to be able to autofocus older AF Nikkors (and some still in production, incl. some Tokina "D" type lenses).
D300 or D300S might be an option worth exploring, though I don't know what they cost (D500 is obviously too expensive). I think D300/300S use the same sensor as D90.
Besides, I only see Nikon D3400 and D7500 bundles being offered at Costco.com. The D7500 bundle is way over the original poster's target price range. The D3400 bundle is slightly over at $600. It does include two lenses: AF-P 18-55mm DX VR and AF-P 70-300mm DX. Note that the latter, the telephoto lens that would most benefit from it, is the $50 cheaper version of that lens
without VR. That's pretty typical of Costco... they have limited selection and only bundles that usually include the cheapest possible lenses. Probably could do better at Adorama, B&H Photo, Amazon Direct or elsewhere.
AF-P lenses are not fully compatible with some earlier cameras. I think D7100 can be made to work with a firmware update, but D7000 cannot. Definitely can't use them on
At some point Nikon will discontinue repairing D300/300S, too (might have already done so, better check with them... they
did continue selling D300S long after D90, though).
But this is going to be the case with any older, now discontinued model. Manufacturers stop making repair parts for them and once their supply of those run out, they sunset the model. The older the model, the sooner it's likely support for it will be discontinued.
Nikon makes matters worse because they have a policy that they won't sell most repair parts to independent repairers. As a result you can only get Nikon stuff repaired through their own factory repair facilities or a short list of authorized repairers. (This is Nikon USA policy... I don't know if it's the same with their other distributors elsewhere in the world.)