Bought a lot of motors? No, not really. As a kid on a very limited budget, I could buy a kit or a tube of motors. A tube of motors came with it's own essential building block for a rocket. Very conveniently sized. I don't believe I ever let one go to waste. I didn't operate like that all the time and of course, these things weren't works of art, but they did (mostly) fly and I learned a good bit (good and bad). Again, as a kid, when I went out to launch, I didn't come back until I ran out of motors or rockets. Sometimes both.

__________________
Retro-grouch