Thanks for thinking of us.
With the five extra mags, at about $25 each, the price isn't totally out of line from Gunbroker auction prices, which I've seen go as high as $700 or so. However it's still just too much to pay for a gun with an MSRP of around $415, and a "street" based off wholesale pricing that might be as low as $299, if the demand were met.
I'm going to keep on bidding $425 on Gunbroker until one day I surprise myself and I win one.