The Nintendo 64 games were really like that for me, I was dying to get one but my parents made me wait until Christmas. By the time Christmas came around I wanted a PlayStation instead (been a PS gamer ever since), but I ended up getting a 64 once it got really cheap for used.

I really wanted to play Final Fantasy Tactics when it came out but I had a ton of games to play in the meantime. Once I was ready to get it, it was almost impossible to find, especially at a decent price. A short time later they started a greatest hits run of it and I immediately got one of the first copies. That first batch of copies, however, were defective (I think they accidentally printed hte Japanese version, which were incompatible), so I had to return it to Babbages/EB/Gamestop. When I finally popped that baby in, though, man, that game was a huge personal experience.