I have a chance to buy 6 DPMS lower receivers, for 175.00 each. I see them going on GB for around 200.00 or so. Do you think that they are (1) A good lower? (2) worth more than 200.00? I know that there was no Ar going for under 900.00 today at the show. They had the basic DPMS with no sights or carry handle for 900.00 M&P's were from 1399.00 to 1700.00. Bushy's were going for around 1900 or so. Could not find a colt for less that 1999.00 What are your thoughts?