I always root for the Bills to win but I wouldn't be too disappointed if they lost the last three.
As you said, though, they always seem to win a meaningless game or two at the end of the season to hurt their draft position. Despite the franchise history of poor and mediocre play, they have had the first pick in the NFL draft only 4 times in the 53 years there has been only the NFL Draft (no AFL), with the last being the Bruce Smith pick in 1985.