Seems like you studied this game XD
and you are right. At sometime you just have too many blocks, so that not all collisions get counted
Nah, it was more a thing of "Hm, I have the money, so why not jsut spawn a ton of items at once and make money much faster"?
since in the end , depending on the used ball, you make 50% profit on the money you invest, so no point in doing it step by step since that is jsut wasted time.
dump it all in, have the balls extinguish their life, get 50% profit on that invested sum.
well, at least if there wasnt the issue with too many balls breaking the collision counter :-D