Go to a gunshow, you'll find one NEW for that price or less. I bought a Bushy last year and a new Army AR-15 this year for $695 and $755 respectively in A4 configuration. I bought a Bushy Varminter with stainless bbl for $900.

The problem with "blue book" values is that it's usually hard to find someone to give you that price. "Blue book" values can be looked at a lot like MSRP values....for example, I just bought a new Ruger Vaquero .44mag, MSRP is $555, I bought mine for $395...the blue book is pretty much the MOST you should ever think about paying for something, to give you an idea of the depreciation on a gun. I personally wouldn't buy the Army for $899 unless it came with a WHOLE lot of accessories, say about $200 worth!!!