In reality, $1500 for a true 2500w isn't a bad price at all. That's only $.60 per watt, which is about what you should expect to pay for any quality amplifier.
Anyways, my advice is to look around for a "cheap" price, and see if sounddomain will price match them so that you get a warranty.
I have a local shop here who matchs some ebay offers...
I could get (if I wanted to buy... or a friend of mine.) 2 1250.1's for 1200 bucks.... or 1 2500.1 for the same price... with full warrenty and everything.