Homemade STT

[1fineday]

Hi, folks!
I've got one question for you.
My friends and I play STT at home about 1 time per month. The structure of this STT contains buyin($40/2000t), unlimited rebuys($40/2000t) and 1($40/4500t)) addon thereafter. Blind levels are about 20 or 30 minutes per level. The majority of peaople who play this STT play very badly and I am one of the most skilled players there.
Usually at the beginning of the tournament nobody makes instant rebuy to increase his stack. Should I do this rebuy in the beginning if nobody does it or not?
Thx for advise)