I am ordering broadheads for the season, and am going to try the Trophy Ridge Steelheads mechanicals. I am ordering replacement blades for these expandables, but they dont seem to offer replacement tips.
Does replacing the tips really matter, or should I not worry about it?

As long as they are still pointy and straight, don't worry about it. The point is to guide/split bone, it's the blades that do the damage.

By the time the tips are shot it would be more economical to just buy a new set of BH's