Gaming is probably the least expensive hobby I've ever had
Let's see, what hobbies do I have...
Drawing -- More or less free since I just do digital stuff and every tool I use is free.
Writing -- OpenOffice is free...
Music -- Listening more than writing, although in the latter case Korg DS-10 was only 30 bucks, and otherwise, CDs are only 10-20 dollars a piece.
Plants -- I don't think I've ever spent more than 30 dollars on a houseplant and the one houseplant I DID spend thirty dollars on is that huge fucking podocarp. Potting mediums' cheap. Fertilizer's cheap. Pots are cheap if you go terra cotta which you should because plastic pots are bad. Cold pressed neem, miticides, rooting hormone, and fungicides aren't cheap but if you're going through those fast you have other issues to worry about.
Gaming -- Buying new games is far more expensive than any of my other hobbies.
Collecting Old PC Games -- This is actually really cheap since I can spend about 50 bucks and end up with like 30 games.
While $120 is a fair amount of money, it's a drop in the bucket compared to most people's student loan payments.
Or you could put the 120 dollars towards paying off your student loan debt. Or towards getting two or three different games.
Or if you're actually concerned about Konami getting your money, then seriously just wait until they re-release it through PSN, because if you buy it on ebay the only person getting your money is going to be some collector selling it at a vastly inflated price.