I believe that an extra 2.50 is quite fair. It's only a minor increase, but it changes things up a lot. Let's analyze the situation a bit.
We normally get about 11 teams to enter. 2nd place, at 5$ per person and 11 people, will get 32$, or 16.5$ each. Doesn't sound that bad, right? Well then you take away 5$ because you had to spend that much to enter doubles. 11.50. Now you enter singles, and lets say that you just weren't on your singles game today and you didn't place in the money. You're down to 1.50. What are you going to do with 1.50? Buy some gumballs at Frys, or maybe some tissues to wipe away your tears of sadness? Either way, not much.
Now, the same situation as above (11 teams), but with 7.50 per person. 2nd place now goes from 32$ to (rounded) 50$. That's 25$ per person. Of course, minus 5$ for doubles, and 10$ for singles, then assume that no one tripped into your fully charged fsmashes today and you didn't place top 3. You're still left with 10$! Those 10$ can pay for a nice full meal at Ihop, and, depending on what you consider a full meal, can probably buy you a unlimited strawberry lemonade too! Sounds pretty good, don't it bro?
Also, while 3rd place pretty much gets the financial shaft either way, at 7.50 per person, if AZ's scene is feeling particularly active that day and 13 teams enter, 3rd place will make a rounded 10$, enough to pay off their doubles fee, compared to 20 different teams (which is a point where optimism reaches its limits) if the entry fee is 5$ per person.
