I got my first baitcasters two years ago, and I love them - for baitcasting. I use my baitcasters for all my cranks/topwaters/spinner-baits/swimbaits.
But a lot of the fishing I do, especially in the early and late part of the season, is dragging or veritcal jigging. For Lindy-rigging walleye, I like to fish with the bail open and tension from my index finger on the line. For vertical jigging in deeper water, I like to have the option of closed bail or open with the index finger, depending on conditions and the bite. So those methods are best served with spinning reels.
It was an adjustment getting used to the baitcasters, but once I was used to it, I'll never go back for those certain applications. For pitching and flipping plastics I still like my spinning reels.