Yes - but it's old versions that will no longer be updated. You can usually find older versions directly from resellers at Amazon at prices below Adobe's direct prices.
The older versions also will not accept files created in the newer Creative Cloud versions. This has been a constant source of frustration at my office. It's an excellent way for Adobe to encourage/force everyone to buy CC.
Yeah, that's pretty clearly the wrong page for buying photoshop. But I quickly found the right one by going to Products > Creative Suite 6 > Buy CS6 > Buy Photoshop CS6. The real problem is finding it if you don't know that it's part of Creative Suite 6.
EDIT: For example, can you figure out how to buy Photoshop from this page? I can't. I've been trying for a couple minutes.
http://www.adobe.com/products/catalog/software._sl_id-conten...