OK - Now we're talking - and I totally agree with your sentiments. I would also still find a 2 ski quiver lacking for the West. I think the 3 ski quiver is exactly where you need to be and anything more does become overkill. Of course you need to have a rock ski for each position so owning 6 skis is absolutely understandable, right?
(then why is is that I still have 10 in my active quiver? - I have some serious work to do) 
My 3 ski goes like this:
Hard-pack: <80mm underfoot, 10-14m radius, 160-180cm, at least a 45/30 tipcut/tailcut
All-terrain: <95mm underfoot, 14-18m radius, 170-190cm, at least a 40/25 tipcut/tailcut
Deep-snow: >95mm underfoot, 18-22m radius, 180-200cm, at least a 30/15 tipcut/tailcut
With those requirements in mind, my "go to" skis are:
Hard-pack: Blizzard G-Power FS (167cm), 72mm underfoot
All-terrain: Scott Crusade (179cm), 92mm underfoot
Deep-snow: DPS Wailer 112RP (190cm), 112mm underfoot
Unfortunately I have too many others to choose from and last season the ski I used the most was the Stockli Rotor 76 (19 days). The Scott Crusade was just behind (17 days). I had 32 days on my all my hard-pack skis put together and only 11 days on the deep-snow skis.
I also have, ahem, SL racing skis when I feel like really punishing myself. I aspire to be able to ski those well and do them justice, hence my involvement in PMTS.