Are you trying to imply that a good name and an outstanding warranty are somehow reasons
not to buy a particular brand of scope?
I'm sure that Swarovski, Zeiss, S&B and indeed Leupold would take issue with that point of view!
The Rifleman scope is a budget model but it seems to do the job well enough for the price, you don't see much negative feedback and it has a reputation as a good, basic, no-frills scope. As with any optics, you tend to get what you pay for. If you buy at the budget end of the market you pays your money and takes your chance, but that's not to say there aren't some perfectly decent scopes available, and you'll take less of a chance with a brand with a decent name and warranty.