RE: $150 scope
I'd take a look at the 3200 elite by Bushnell for the money it is a good scope. Really this scope has set the bar for the affordable range and few IMHO or experience come close - fully mulitcoated, 1 piece tube, click adjustments, raingaurd, fast eye focus and lifetime transferable warranty. No it won't displace the uppers but when you say affordable it is one of the first that pops in my mind.