How im****tant is it to have 3 values in catalog?

I've been looking at the new SCWPM Modern Issues 14th edition and it
occurred to me that maybe it's unnecessary to include values for VG, VF,
and
UNC when in my experience all most collectors want are perfect UNC notes.

I realize some of the rarer and older notes are desirable in lesser
grades,
but do you really think it's required to list VG and VF pricing? A great
number of notes are listed at FV in anything less than UNC, and given how
unreliable the SCWPM pricing can be anyway, would the lack of VG and VF
pricing be a deal killer for catalog buyers?