Unless you are set on BLT or have a trip in the next 2-3 months that you must use points for, buy resale and you've negotiated yourself a much better rate from the start.
And then, you can try to negotiate on the resales, probably more likely to have some leverage on a stripped contract with no points until 2011 or even more so, 2012 if 2011 was borrowed. That may be one way to get into BLT cheap, but then you can't stay there for some time.
Resale may allow some flexibility to negotiate maintenance fees and who's paying that first year (maybe).
Resale is really the way to go unless you can't find your specific needs, use year, point values or want to go now.