Should I Buy or Rent a Tuxedo for Prom

OR

My high school prom is in 30 days, and I am having a hard time deciding what to wear, and wether to rent or buy a tuxedo. Most of my friends are all renting a tuxedo, but I don't want to look like every guy there. I want to have my own unique style. I think it makes better sense for me to buy a full suit, this way I can wear it to the prom, and to any other formal event that comes along in the future.

To be honest, I don't really believe in the idea of going to prom, but my girl wants to go so I have to go, but I made sure that I am not paying for her. She works so she can pay for herself; am sorry but unless am getting some you know;) after the event I ain't paying for two. We are still debating on who's prom we should go to. We both go to separate schools, and I want to go to mine and be with my friends but she wants to go to hers and be with her friends. Maybe we should just go to both, since they are on different days, I am not sure.

I just home that I wont be disappointed, it better be a nice night. I am not sure, my school is only charging $80 for students, and $85 for guest. Does this mean that it is not going to be good. Because other schools are charging $125 for students and $130 for guest.

Let me know what you think I should do, the prom is on May 30th, therefore the sooner the better. Thanks alot.

And Why is there no refund on the prom tickets? What if I decide not to go, or one of us gets sick?