Totally agree w/this being that I was one of the first people on FP teaching people to Rewire and still can answer the most intricate questions involving FL Studio.
I went to using Reason exclusively because of OVERKILL. Every producers different, I tend to get unorganized, so between an MPC 2000XL, a Korg Triton Rack, Reason, FL Studio, SONAR, and Pro Tools, not to mention somewhere around 20 virtual synth plug ins, I realized I needed to contain my creativity. All my MPC, Battery, FL sounds are packed in Refills, and instead of skimming bank after bank in vsti after vsti until I find the sound I want, I know exactly where to go to find what I want now.
I almost bought a Motif because I just wanted one controlled enviroment where everything from beginning to end was all done in one controlled and organized console. No turning on 4 things to make 1 beat play, no getting rid of a buncha stuff wasting space you never use just to find out that 1 sub in that 1 song was in that library and you can't find a good replacement.
Reason is perfect for that being that it's the only one of all the above mentioned things that is completely self-contained. I don't even use Recycle. lol.
But although I sometimes joke up here that "FL Sux" to play with peoples insecurities, honestly, out of both the hardware and software I own, my personal opinion is FL does more and gives you more bang for buck than anything else on the market.
Hell, I can go back to using it at FL 20.5 for absolutely no upgrade fee, no one else is giving you that sweet of a deal. But I feel comfortable knowing I gave up some 200-300gb of junk along w/hardware for a Reason Folder that's 16gb of sounds and I'm making better music than ever.