That sounds like a really good price for a 1630 - they are going for $500 plus on eBay. The nice thing about Berninas is that there are a myriad of feet available for them - a little on the pricey side, but beautifully made. Many very experienced quilters prefer to sew with the older Berninas and it should give you years of good service.
The other nice thing about it is that if you ever feel the need to upgrade, to get more embroidery capability for instance, you will probably be able to get more for your machine than you paid for it.