They've run ads for those two bikes on San Francisco CL over the past few months .. in fact, just checked, they are both still on there for $1500 .. if you're concerned about replacement parts (stems, seatposts, wheels, chassis/suspension parts, frames, etc) call them and ask them what kind of Birdy specific parts they have in stock on the shelf .. $1500 is a fair price considering what nice bikes they are and it's competition .. they've also had that Mk2 on sale for months, so they might be agreeable to a friendly offer ...