I can't upvote this enough. The owner of something old like an EOS 10D would be far better served investing $1000 better glass than they would upgrading their

I can't upvote this enough. The owner of something old like an EOS 10D would be far better served investing $1000 better glass than they would upgrading their body. I purchased the Canon EF 50mm f/1.4 USM for my EOS 10D ($400), and spent the next two years taking completely new pictures. The pictures that I took with my EOS 7D didn't look that much different from the EOS 10D (though the faster focus and startup was greatly appreciated)