I have accumulated an embarrassingly large number of post-1987 football cards at garage sales and Goodwill. 99 cents for a bag of junk era cards are still fun to sort through for an hour or such, and if nothing else collect a few HOF's. I do not think I would ever bother pursuing a set, though sure to be close with a few different ones. I typically donate duplicate HOF's, Seahawks & Mariners to the library who give them away as bookmarks or reading benchmarks.

If I'm spending more than change on my collection, I try to keep it 1958-1977.