I have gone through probably 8 or 9 DX lights that were less than $20 each. Some break right away and others last up to a year. But at the end of it all I spent more on the cheap lights than the $100 I just spent on a nice Lezyne light. If you have the money, the better lights seem to be a better deal in my opinion. And yes the better lights certainly are overpriced for what you get, but still a better value overall. The better lights have constant brightness, reliable switches, better power management (efficiency) and just always turn on and work when you want them to. I have had way too many night rides delayed trying to get the DX light to come on by loosening and re-tightening the end cap trying to find the sweet spot and fiddling with the clickie to keep it from switching brightness levels on its own. I just want to ride with reliable stuff.