Vote #5 for the Mueller APV.
When I purchased mine it was $114. Not too much over the $70 budget... and worth it. I love mine.
So in the Mueller APV... you get a reliable scope... and a scope that optically performs as well as scopes costing 3-4 times as much. You can't really ask for more. It's a great value... and you should take a good look at them.
EDIT 2: I purchased my APV in 2007 from Dennis at Mizzou Mule Guns (
http://www.mizzoumuleguns.com/id12.html) and he's a stand up guy. It's a small operation but he takes care of his customers. Current prices: the black APV is $115 (includes shipping and a matching sunshade that other retailers charge $10 extra for) and the silver APV is $125 (includes shipping and a matching sunshade that other retailers charge $10 extra for). At the time, I purchased the scope from him because his prices were the best... no one else was offering free shipping and a free sunshade. From taking a quick look around online... that's still the case.