Epsons are not nearly as prone to clogs as some would have you believe. The person with a bad clog will report on this group, but the 500 with no serious clogs (that includes me) rarely say anything. That beingg said, clogs do happen. If you don't charge the printer with ink you won't get a clog, of course, but the included inks might get too old.
I am curious as to why you would by a printer 2 years before you will use it. In 2 years you will likely have a newer Epson model available and/or discounted 4900s.
The printer makes gorgeous prints. I used one for ~3 years (again, with no serious clogs).