Dress Question!! Need Help!

[Rio_Kohitsuji]

I'm in need of guidance right now dealing with something all women has asked of themselves.

Should I wear the same dress to formal that I did last year??

Here's the deal...Dusty's TKE Homecoming is next saturday and I'm wondering if I should wear my nice black-sorta-tango style dress. It's a halter top with a plunging neckline with the dress hem that is long in the back and comes above the knee in the front in a "V" shape. (it "drapes" itself). I wore it last year, btu now since I'm low on cash and have lost some weight I wondering if I should wear it or not. If not, I'm borrowing my sister's black dress (basic black dress with one shoulder, knee length).
Ack..I need some advice.

-Kayla