The have the closest to real-time MLS data that we have found so far. 

I'd call that "selling the sizzle, and not the steak."

Kinda like eating a 1kg steak.

I find Zillow about the best and closest to reality

Biggest issue for me is the time/energy to really analyze enough potential deals or getting to REIA meetings because the closest one is 45 minutes from me. 

First thing I do when this happens is go back to when houses were selling and look at those numbers then I find the closest area that has fresh comps to look at and compare them to older numbers from the subject property's area.

Current Libertarians seem to hold an ideology closest to our founding fathers.

Del Frisco’s Double Eagle Steak House8100 East Orchard Avenue, Denver • 303.796.0100Del Frisco’s is famous for its prime cuts of USDA beef, but the cigar bar is the draw for cigar aficionados in the south metro Denver area.The Robusto Room9535 Park Meadows Drive, Lone Tree • 303.790.7363This cigar lounge and bar south of Denver is known as much for its cigar store as for the drinks.

Air takes the path of least resistance, which means the shortest ducts (closest to the air handler) will naturally get more flow than the ducts further away, as Mitch stated.

There's a few comparables just doors down which are:A smaller home for sale at $870kA house that's the same size that just sold for 1.3mAnother home the same size that's for sale for 1.2mThose are the closest ones to mine, just doors down, you can see them and walk to them.