I have asked around. And after talking with people with dentures of all types I was told "Beware, you get what you pay for".
My estimate for just the uppers is $2700 (But that's to have the teeth extracted and for the local, not to be put under for the procedure). Still getting more estimates so I don't know yet what I will do. But to me that price you quoted sounds way too low to get any kind of real quality or warranty. I dunno... I'll call and talk to them.... I am very low income, no insurance and very desperate...