The sad fact is that the software industry is all about promoting new software because it makes them money.
If you think that they have your interests in mind when the promote the next 'windows' you are mistaken.
The 'new' versions of windows really don't do anything different than they did 20 years ago except taking massive amounts of memory making your current machine 'obsolete'.
If you have a machine that you like and it is running XP just have the maximum memory (that is RAM) installed and it will run faster than when it was new.
An older version of Photoshop can be had for usually under $50.00 and will do far more to manipulate jpgs and other types of files than you will probably ever use.