Conicals are nice, but I'm quite content with my carboys and they're definitely cheaper to control temp on. Plus some of the beers that need to sit for a while can be easily shuffled off into a corner and I've still got a few carboys I can ferment in. I don't really see myself switching over, just not quite enough bang for the buck for my current batch size and frequency.
Current: 08 Yamaha WR250R, 99 Suzuki DR650, 05 Suzuki DL1000, 92 Ford E250 Motohauler
Gone but not forgotten: 2008 KLR650, 2000 GSXR1000, 1999 ZX6R, 2000 GSXF600, 2004 Ural Tourist
Quarter Life Crisis 2011 Ural National Rally