i don't really know prices all that well, but you're looking obviously at an older model, with a fixed stock, where most of the AWs sold had folders. They've kinda gone through the AX and AXMC, so it's not really 2 generations behind, but they've released a good bit of new stuff since the old AW. If this is something you are going to play with for a while and then try to sell, it's unlikely you'll be able to sell it quickly at that price unless you luck into somebody who just likes the look of the old rifles.
of course, it's an excellent rifle, but mile high has the AT or AX starting at the same price.
i could be wrong but i don't believe mile high chambers their own barrels. they sell them, but the work is usually shopped out to a few different gunsmiths (all high quality)
if it's exactly what you want, i'd say it's a decent price. it's not a huge bargain and you're not getting completely bent over.