Do I take this game too seriously?

[Peter_20]

So, now I´m about to enter the Floating Continent, and since I really wanna make this a perfect game, I´m right now trying to get all equipment in this formula: weapons should be bought so that ALL characters can use ANY weapon in pairs, in ANY party formation.
For example, I´ve got four Thief Knives, since Locke (2) and Shadow (2) can both use them, 20 Mithril Knives, since ten chars (each with double, 10 x 2 = 20) can use them, and so on.
Get my point?

The same goes for all kind of armour and relics: they should be bought so that every char has an own "copy", like 11 Gaia Gear (11 characters can use them) and so on, and so on.
Alright?

Since some equipment disappears in the World of Ruins, I spent an hour of this night to find all those missable things.
I wrote them all down on paper on Microsoft Works, and right now the paper´s lying right beside me; I wrote in size 14, and it filled two columns of missable stuff!
Here´s the list I wrote, for those who are interested:

Air Lancet x 8
Boomerang x 2
Blossom x 2
Darts x 2
Dirk x 20
Epee x 6
Fire Rod x 6
Flail x 10
Forged x 2
Full Moon x 2
Guardian x 2
Hardened x 1
Hawk Eye x 2
Ice Rod x 6
Kaiser x 2
Kodachi x 2
Kotetsu x 2
Mithril Blade x 8
Mithril Claw x 2
Mithril Knife x 20
Mithril Pike x 4
Mithril Rod x 6
Morning Star x 10
Poison Claw x 2
Poison Rod x 6
Regal Cutlass x 6
Stout Spear x 4
Thief Knife x 4
Thunder Rod x 6
Trident x 4

Bandana x 6
Bard´s Hat x 13
Buckler x 13
Cotton Robe x 4
Gaia Gear x 11
Gold Armour x 6
Gold Helmet x 5
Gold Shield x 6
Green Beret x 13
Hair Band x 3
Head Band x 6
Heavy Shield x 6
Iron Amour x 6
Iron Helmet x 7
Kung Fu Suit x 4
Magus Hat x 6
Mithril Mail x 6
Mithril Shield x 13
Mithril Vest x 13
Mystery Veil x 3
Ninja Gear x 6
Plumed Hat x 13
Silk Robe x 6
Tiara x 3
Tiger Mask x 2
White Dress x 3

BTW, note that not ALL equipment is necessarily missable, I wrote down everything
that you could buy in WOB, so as to get it done.

Do you think I´m exaggerating?
Or are you also doing like this, at times?