Seems the price has gone up considerably. We purchased ours for much less ($3500 with first year maintenance included) a couple years ago. Here you can at least get an IPad2 with the purchase: http://www.defenderstore.com/Defender-U110-U120.asp
The Defender Store had a similar gift (XBOX 360?) a couple years ago but agreed to lower the price for us instead and the sales rep with Virtual Graffiti (parent company) took further discounts as well. I still have the rep's name. Send me a PM if you want it. I cannot guarantee he is still there.
The Arcmail server has been great for us to restore individual emails or conversations but since it's pretty much just a journal server, mailbox and domain restores are not great. You get back all of the junk too.
Wow, they've really hiked the price up. The list price today does...