So I assumed that was 2-ply...or do we never care and just go hardcore where everything has to be less than what the wiki says...seriously though, pretty sure the cube tissues are more expensive than the flat pack (not the tissues obviously but the packaging).
I'm assuming price guide is based on 2 ply. If you prefer 3 ply then there is no guide.
If it makes no difference to you then this is a bad deal relative to prior deals. Also there are fewer tissues per box, which drives DW crazy.
And that's what happens with many many items on that list, different flavors, size packages, brands, scent, etc all cost differently.