couple points i don't think i've seen yet:
1.) you can't teach speed. if you watch tape of spiller in college and see what he has done in the pros, defenders cannot catch spiller in the open field.
2.) i don't believe the spiller pick is really a "luxury pick". remember, this is a contract year for lynch and fred jackson is 29. if the bills don't successfully trade lynch, this gives them a full year to pound on lynch, and avoid wear & tear to freddy & CJ. next year, lynch is gone, jackson is 30, and spiller has a full year of experience under his belt.
so, instead of next year debating whether we need to resign lynch or draft some unknown out of college, we have a RB who has a full year of experience in Gailey's system and was rated far and away as the top RB in this year's draft. and spiller doesn't seem to be an a-hole yet either. and if the rest of the team still sucks, we can focus on drafting for one of those other needs while being assured we have one of the most explosive players in the NFL.