You don't have to stop, some of my best strats come from money maps, but I don't support them and besides money maps require just as much skill as a Ladder map, because there is no cliffs so you have to scratch the cliff idea and make some other type of D. Lots of money means you have to be really fast. I learned how to do good drops from a money map because most people go over defensive on money maps, so I got the idea for decoy units.
But on topic, yes a Reaver drop is very effective on money maps, considering the splash could kill 50 in 1 hit, but you wouldn't get away with it if you play an experienced player cuz he will have units to draw the attention away from the workers.