My dream would be just a wide variety of higher end bikes to test. When I was shopping I only had the real choice of a Cannondale Synapse, Specialized Ruby and Trek/Lemond options. This was still good because any of them were available in my size (48 cm, including all three Rubies and Synapses). Most of the shops here have a wide variety of entry level bikes from all manufacturers.

I would have liked to see:
-Orbeas in stock, not just one or two.
-Fuji higher end stuff, my last bike was a Fuji and I was quite pleased. The shops here carry either their Tri bikes or the flat bar road bikes.
-Something steel, anything high quality and steel.