Thanks, cruzenmike. From the info on their websites, it looks like Bad Boy has a 2 year warranty (which does concern me) while Ferris has a 3 year. I've been avoiding manufacturers who don't have shops near me, since it's inevitable that I'll need service at some point. That bumps Cub and Scag off the list. I'll have to look at the specs on the Deere.
I've gotten preliminary price quotes from both local Ferris and Bad Boy dealers. The Ferris dealer is running a sale for $3500 after mail-in rebate for the Briggs version of the 400s. The Bad Boy dealer quoted $4500 for the Kohler version of an Elite. I have yet to go hands-on with either, but that $1k difference isn't something to sneeze at!