Picked up a Tasco 20-40 x 60 for $120 bucks on sale (regular $199) a couple years ago from Big-5 sporting goods. Seems to be fine for the range (steady & plenty of light).
Tried to use it hunting but it wouldn't gather enough light early & late, need to step up to about $300-$400 for that kind of quality.
worked fine at the range, we could see .270 holes out to 350 yards on neon yellow/orange & shoot-n-c targets.