I don't see why anyone would want to scam the program - that's a good way of ensuring future classes don't receive those benefits (and other). Plus, there's lots of good stuff you can buy - nice stethoscope, embroidered scrubs, iPad, phone, books - that stuff adds up quick and its great that you don't have to spend your own money.
Also, places are usually fairly liberal with what is considered medical related. Want a camera? Do a 2 week elective in medical photography and buy a $1,000 SLR camera you're using for the elective. Want to travel? Use the funds for a trip overseas or to a conference and stay an extra week, you're only out of pocket for the hotel. Need a computer or software? Do a crappy research project and use it for that. Want a microphone and sound editing software? Do an elective with medical podcasting.
Seriously, the thought of defrauding your program is really absurdly short sited. You have an awesome opportunity to buy whatever you want with someone else's money, instead you could get fired from medicine and screw over your program.