Assuming there is some good reason you wouldn't want the X-T1, and if it is just price, that X100 deal sounds very sweet to me. However, you should do some research on reviews of the X100s and the improvements Fuji has made to it. They seem impressive enough to me that I think I would have to go for it over the X100. That difference in price does make it a tough decision. For me, it would not really make any difference at all in reality....I could take crummy shots with either one, and surely would!
Regards!