JapanMS removes 2x EXP tickets

And if family buffs didn't exist? You'd be just as likely to buy them regardless. Heck, making family buffs -less- useful, means people would be more likely to go for it in the instance where they don't have x1.whateverfamilybuffsgotnerfedto, because it makes less of a difference

Guess that depends on the person.
For me, it's hard enough shelling out 2k nx for 20% exp (about what I gain in 4 hours of 4x, over 4 hours of 1x). I don't think I'd pay 2k for 10% exp, unless getting nx suddenly became a whole lot easier.