The lgs down the road has a custom pack of 50 "random fetches" (says the owner) for $200. No one can look inside the pack, or have any hint as to what kind of fetch lands are there. Should I buy it? Of course, if I do, I'll trade them out on here, but I don't want to blow $200 on it for nothing. Is it worth it?
That depends on what he means by fetches. ;-) If it's full of only Mirage cards and evolving wilds, you're out of luck.
If he means onslaught and zendacar, then sounds like a great idea.