I would approach it this way. The bike is already used and has taken the hit from depreciation. Would that amount be significantly less six months or a year from now? If the answer is no, I would hold onto the bike for a bit just to make sure you are not going to use it.

I have heard that shops are having some trouble getting product (parts shortages due to the tsunami effecting new bike production), so perhaps it would be worth more later in the season.