Worlds Staff cards: '04, '05, '06

How much are the following cards going for?
Worlds “Staff” card 2004
Worlds “Staff” card 2005
Worlds “Staff” card 2006

I have a good, old friend with an amazing collection who has these, and he asked me to see if I could sell them. There are none on eBay, and I’m having difficulty finding any previous sales, so, as always, I come here.

Any ideas what these are worth? He says the 2006 one was actually the hardest to get, although I’d assume the 2004 is the rarest.

I don’t collect these cards in English, but I found some 05 and 06 on eBay for you in stores. Looks like 2 sellers priced them each at $250.

cgi.ebay.com/Pokemon-2005-Tropical-Wind-027-STAFF-Promo-Ultra-Rare-/290470091218?pt=LH_DefaultDomain_0&hash=item43a15dd9d2
cgi.ebay.com/Pokemon-2006-Tropical-Wind-036-STAFF-Promo-Ultra-Rare-/290470091661?pt=LH_DefaultDomain_0&hash=item43a15ddb8d
cgi.ebay.com/PROMO-TROPICAL-TIDAL-WAVE-STAFF-05-promo-027-POKEMON-/280616719335?pt=FR_JG_Collections_Cartes_de_Collection&hash=item41560f53e7
cgi.ebay.com/PROMO-TROPICAL-TIDAL-WAVE-STAFF-06-promo-036-POKEMON-/280616722535?pt=FR_JG_Collections_Cartes_de_Collection&hash=item41560f6067

$50 is a solid price for staff cards. The older they are the higher. $250 is outrageous. I would expect a high price on the 05 and 06 to be close to 100, but that is a high price. The 04 might bring in more, but $50-60 would be a solid realistic price.