For budget but quality optics, I would recommend looking at the Vortex PST series. I have the 1-4 and really like it and they have great customer service from what people post.
1x4 is good. I don't really want to spend above $400 cause I just use this gun for some varmint hunting and random shooting. I don't need a $1000 scope
They have Vortex scopes and I asked the individual running that GB and his prices were marginally better or not as good as the pricing there. Granted I wasn't looking at the $1000+ offerings and I understand the more they cost the more margin there is. But their prices were very good is what I am saying.