Without a doubt Totm has become the fallback to all combats these days. Faster more creative and more often is the new norm. I'm a fan of a "set piece" model when I can put something together for a boss battle, but I'm the last DM to bring it out anymore. I don't miss grids when not used and enjoy them when they add to the experience. I'm playing often with different DMs - while running my sons group. Grids, minis and the rest help with flavor more then anything since they busted out the playtest 3 yrs ago.