When we reported back in 2006 that a new condo building was being built at 2223 Caton Avenue, we wrote that “the 15-unit building will be an interesting test to see how far out the market for cookie-cutter “luxury” apartments can push.” Well, two and a half years later, it seems that the project passed the test. We received an email earlier this week from a reader trumpeting the fact that the final two units had just gone into contract making the building sold out. Impressive. GMAP