I love to occasionally watch campy crap like Sharknado, etc. I hey enough of real life every day and sometimes just want to watch silly crap. The directors and producers know it too. Ive read interviews with some of them and they point out their methods.
What's really fun is to watch one of these from the beginning and pick out who's going to die first. With other genres it's usually the good guy or the ethnic one. In these disastrous disaster movies it's always the hottest chick, the skimpier the clothing, the faster she'll be mauled or bitten in half.