And how many rounds do you put through it a year??
If paper bad guys are your worst problem, then it might be fine.
Ive put over 3000 rounds through the DPMS and about 1500 in the Rainier Arms. I don't play in the sandbox so I'm not really too concerned about actual people, but I know the rifle (either my RA AR15 or my DPMS AR15.22) will perform the similar vs an attacker. Do i see quality differences, sure since I know what I'm looking for, but there is nothing wrong with DPMS as a first rifle.