Q1= "Is there's a bigger, better, or more expensive material I can get in place of this one here? Seriously, I've got a lot of coin and I can send my jet to Japan for a toilet seat if that's what it takes. Are you sure we can't resurrect this Frank Lloyd guy...his stuff is the shizzle." You're hiring 1%'er craftsman from around the country, at least, to do a lot of the specialty work. If you can see drywall somewhere a mistake has been made.
Q2= "I've got more money than sense, but just barely." Almost nothing you can touch in a C2 home can be sourced at a home depot and the guys standing around the front looking for work don't have the skills to execute many of the construction methods and materials being used.
Q3=Really nice residential construction. Fundamentally, the materials and methods are no different from a tract home. There's a little more effort on design. Materials can be mostly be sourced locally, maybe not from home depot, but from from a nice specialty store in the next big city over is no problem. The home depot crew can do most of the work as long as they've got competent supervision.
One of the things I check out sometimes to keep my Q1 Q2'er calibrated is this site.
http://www.flickr.com/groups/photographyforrealestate/pool/
Here you'll see some work from top photographers shooting some of the nicest homes in the country.