I panel lined and stickered the only valk I have, which is on display. As for which ones I buy, I'd like to buy only the one's I like, but alas that's easier said than done.
It's a pain to import them over here because of a dang taxes war.
Whishlist,
A second VF1-S DYRL? (one for display and one as a beater)
VF1-A Max
VF1-J Stealth
VF1-J in Valk White, might as well be Hikaru's, I'm not a fan of his though.
VF0-S (I like the paintscheme)
VF0 -A (I like this head better that the S)
And that's about it (still over $1,000.00 so not a small amount)
Luckily I'm not a huge fan of fast packs so maybe I'd buy only one for the sake of display.