$300 minus $40 = $260... I couldn't resist.
![Jester :biggrinjester:](./images/smilies/biggrinjester.gif)
Really, other than the quality of the finish, if the forgings are the same, you are paying for a name. Some names are associated with better quality than others. Also, some companies may not even machine their own lowers. They will get one of the suppliers to do this and put their name on them. If you are going less expensive as you can, get an Anderson. I would have a hard time spending more than $100 on a stripped lower which is twice what an Anderson can be bought for but $100 is my limit. If you're piecing this together slowly and can spread the pain, I would get a lower in the $80-$100 range and then the upper from the same company.
I wish I would have loaded up on Aero's when a local shop had them on sale for $60 a couple of years ago. I have resisted buying any more Anderson's. Not because I don't like them, but because they are cheap enough to buy without remorse and I have more than I need. If Aero's or another of similar quality go on sale in the $50-60 range, I don't think I could hold off and would have to get a couple or 3 more.