There is a place for these cheap PSUs, i know a lot of people hate the now, i would never use them in my rig because they don't fulfil my requirements.
BUT!
if someone is making a 'cheapo' computer, for say £400 or less, then these can be great, i remember when i didn't pay attention to PSUs at all, i had a 400W Q-Tec, the highest that was around at the time (wattage wise) and it served me brilliantly, only with todays knowledge do i know that i was probably ragging it and it had a higher probability to break.
im just saying though that sometimes people cannot afford £40+ for a semi-decent or £60+ for a decent power supply. c'est la vie.