The way you have those loopholes and you have to watch out for them else you're on the hook for thousands of dollars is nuts. I mean, sure, you _might_ get a good deal or you might get completely screwed. This is absolutely not normal or fair. A society of gotcha's induces a lot of inefficiency. And as much as the US sometimes rails against inefficiency, it seems it's only a problem when you're not used to it.