BB in East Palo Alto, CA has the 42PX60U on display.
BB in San Carlos, CA has the 50PX60U on display.

I was able to buy the 42" from the San Carlos store for $2250 (price match to Panasonic's website, plus Club Panasonic discount). Their computer says they'll get it in on 3/24. The East Palo Alto store wouldn't price match.

Can't wait!