so going with this guestimate of 20 slots, i have a response for you kms. if you're placing at 2500, it doesn't matter whether 20 people all place their nubs at 2450, or if one places at 2450, the next at 2400, the next at 2390, etc... if 20 people place below you, yours will be bumped. so if you plan to sell, price at a cost people will pay (yes, there have been times where people pay up to 3k, but not often. place at 2k or 2.2k or something more reasonable). if you want to save them to build, don't let them wait (and waste market space) for long... go build. and definitely, if you ever store nubs on market, you better have a big enough house to hold them all if they get bumped.
--jason