> Theoretical development costs seem like they'd be much lower on platforms where you expect lower error rates. What makes you think that GAE's error rates are

> Theoretical development costs seem like they'd be much lower on platforms where you expect lower error rates. What makes you think that GAE's error rates are higher than "the norm"? Better question - what makes you think that GAE's error rates are higher than what you can get/do yourself? (Yes, I'm sure that someone can beat GAE, but unless you're that person/organization....) Yes, GAE encourages you to program for error. Unless you've got an error free alternative, you're either programming for error or hoping for the best.