Re: And then billed 3 extra hours?
It still baffles me that they would spend money to make the scope slower? Why not just offer the 100MHz version only?
Price Bracketing - Most people will prefer to pay more for the higher performance version over the basic cheap(est) version. The existence of a cheap model "justifies" the higher priced ones. For this strategy to work, the cheap version of course has to exist so they will make one with minimum effort invested. Sports bicycle suppliers does this all the time.
Sometimes suppliers also have several so-so product variants which merely exists to funnel sales towards "The Original", "The One That Just Works", like Absolute Vodka (or Garmin) are doing.