I think that is too much money.
I just found a Buy It Now listing for this machine on eBay from a sewing machine outlet store, new-in-box, for $2300+85 shipping. Here is a link to it:
http://cgi.ebay.com/Husqvarna-Viking...item4150288f49
Oops! The listing is for a Topaz 20, not a 30. However, I still think that is a lot of money for a used machine. Even if a machine has been used only a few hours, individual sellers often ask around half the retail price for a machine.
Okay. Found a completed listing for a new Topaz 30. Total of $2553 with free shipping. Not sure if you can see a completed listing without logging in to eBay, but here's the link (scroll down to read all the details of the transaction):
http://cgi.ebay.com/Husqvarna-Viking...item4aa1fa35ad