I think an underrated variable here is availability from company stores vs secondary market. This obviously overlaps cost in general, and varies with time, but INFI from the store is only slightly more expensive than SR-101 or SR-77 on the secondary market. something to consider. Of course, if you are patient enough to wait for INFI in the store, you'll probably see SR steels in the stores as well. I love all of them. To me its more an issue of design. All other things being equal though, I'd pay extra for INFI, and I'd even pay extra for Res-C if it was an option with INFI. Not because I think it should cost more, but because I definitely like it more.