Would you want to be crowded in a room with 200 people for any length of time? Why do you need to maintain 200 feeders? If you go through 200 in 30 days, then buy 40 per week instead. 40 is still too crowded in my book, but it beats 200..
Plus, something else to consider... Prepared food is almost always better for your fish than feeders. In SW, it's popular to buy a Volitan (lionfish) and throw a bunch of feeder goldfish in there to see it hunt. Well, the problem there is that feeder goldfish have virtually no nutritional value, so he's essentially eating a bunch of chocolate bars. Same goes for Oscars or whatever other tankbuster you've got. Prepared food is a far better choice if you can get your fish to take it. Plus, you lose the whole housing/feeding/cleaning problem with feeders. I'm not preaching against keeping predatory fish, I had red bellies and oscars for a long time and loved to watch them hunt. But, the benefits of a more varied diet outweigh the bloodlust of watching something die.