So I just recently acquired a Marlin 795, I have yet to fire. I am planning on going thursday to the indoor range. I would like to get an inexpensive scope (more than likely the $30-$40 Bushnell at Walmart) and I realize inexpensive/cheap + Good Scope = laughable. So my question is, if I buy an inexpensive scope from walmart is it just going to crumble to dust in my hands next month? Or Should I just see how I like my stock sights?