I hope you're right! The waiting game is tough, and it's hard not to psych yourself out while waiting to hear. At least ISU is all at once and we know when it will be. Some other schools I applied to are harder because some people hear before others, which induces panic and stuff.
I also would cancel all my other interviews if I got into ISU, but I only have one left and it's the 12th, so I may end up going. I didn't book flights yet cause I'm hopeful, but now I'm afraid I'm screwing myself and I'm gonna have pay so much for a last minute flight if I haven't heard/don't get in before then. In previous years they've sent acceptances out the week before, so it's possible I'll know...