Reading the "Best single stack 9mm" thread made me wonder how many P225's you guys are seeing out there. Are they just used, and if so, how much are they going for?
Over the last two years or so, Mike at Precision Armory (http://www.precisionarmory.com/) has gotten in small batches of P225s. I have read the comments of many pleased customers of his. Generally, I hear quotes of $500 and under for the P225 with SIGlites and K-kote. I obtained mine from Mike and was/am VERY pleased.
There are usually P225s around the auction boards for anywhere from $500-700.
I know that Four Seasons Firearms (http://www.fourseasonsguns.com/) has a small stock of NIB MA-compliant P225s in stock for @ $600. Although that price may sound high to some, it's a hell of a thing to see these pistols in MA. Good luck!