Wait for a Performance Bike 20% or more off sale and buy the Michelin Pro4 Endurance for under $30. I unintentionally tested its sidewall resilience last week when I went off course and scrubbed the entire side against a sidewalk before crashing. The graze marks are clearly there on the tire but it's held up just fine on my commute. I run a 23mm Michelin in the front because I used to have 28mm GP 4000s IIs both front and back but punctured the front on my first day of commuting.
Oh yeah, I also don't like the Gatorskins that I have on my other bike.