I'm looking into a US stove 2200i insert, Century CW2500, and a Osburn 2000. What is the difference between the stoves?? The US stove I can get for $750, the Century for $1100, and the Osburn for $1900. They all have about the same efficency, firebox size, and BTU output, although the Osburn is a bit bigger. Is there really something i would be able to tell with a $1000 difference between the stoves?? I might be missing something since i'm a newbie, thats why you guys are here to point things out!!