cheap scopes are cheaply made. simple as that. While they may work for awhile, they won't last. Yeah, I know, there are guys that swear their Swift, or Tasco, or Leapers scope is the cat's meow, but then this IS the internet.........
It is actually more cost efficient to buy a quality scope up front, than to buy several cheapies over the years.
Nemo Me Impune Lacesset
"The trouble with our liberal friends is not that they're ignorant; it's just that they know so much that isn't so.".........Ronald Reagan