Someone that has missed games in multiple years. Someone who has had two different injuries already this year. He's undersized for the position which is most likely why he's hurt more often.
Baffles me that people think we should pay for a very often injured player. Sure he's a good player but unless he comes cheaper than we all expect, he wont be worth it.
Your title clearly states whether the Bills were cheap on DTs. They are 4th in spending and used a recent 1st round pick on one. As for quality, well that's a completely different story.