Of course they want to sell you the most expensive edition, so Adobe has no incentive to make it easy for you to see that the Standard edition will suit your needs.

But the choice is fairly simple...  Do you need to create 3D renderings, which are made up objects that can be made to look more or less 3 dimensional and real, such as the following?  If not, then you will find Photoshop Standard Edition to be quite capable of doing what you need.

-Noel

As implied in Noel's excellent reply, for the purposes stated in your original post the standard edition of Photoshop will more than suffice for your needs.

It's even conceivable that, for your limited needs, you could make do with the much cheaper, simplified, even emasculated application known as Photoshop Elements (less than $90). 

You should download the respective trial versions and see for yourself.

earthandwaterpottery wrote:

 

…Maybe it's me but I don't think the website is the most user-friendly I've ever used…

That's an understatement.

As a matter of fact, a bona-fide case can be made for the proposition that Adobe can de described as the most customer-unfriendly corporation among major software developers. 

I agree with the statements about the Adobe website. There are only two versions of Photoshop - the standard version and the extended version. Since you are interested in displaying photos of your own pottery creations, I don't think you need the extended Photoshop version, with which you can create 3D objects from scratch like the can in the image that Noel posted.  As others have pointed out, Photoshop Elements can also do what you are describing at a reasonable price.

Another option could be Photoshop Lightroom. That program is powerful image cataloging and enhancement software which uses the same technology as Photoshop Camera Raw.

To find out exactly what each recommended program can do, I recommend looking them up on Wikipedia, rather than on the Adobe website.

In your situation, I would concentrate more on the photography side, making sure you are shooting your creations against a suitable background and with proper lighting.  If your photos are well done to begin with, you might not need any post-processing at all, and certainly not Photoshop, which in my opinion is overkill for that purpose.