It's quite an expensive package yes. 10% is an indication, not a rule set in stone. Those software houses tend to be realistic. Not all of course, Adobe software still costs a fortune for students.

I guess you'll go into warez and illegal copies if you want anything real cheap, while still being the full deal. Or you pay way too much for something that turns out to be nothing more than a viewer or something like that.

You can check out what kind of educational program is available for you, or maybe you can find a used/older copy at e-bay?