QUOTE(NightHeart @ Mar 7 2013, 10:38 PM)
Well, how I value may be different from others.
Now that the game is quite old already, I've integrated another factor into my valuation system i.e. the guardian generation. At the moment, I value all guardians from Berneside Plains & Volcano just slightly above 4* ace. Exceptions are Apsara, Dominion & Ettin (this one is still outstanding).
There are 2 main reasons, firstly is the newer guardians will generally be better than the older one. This is a fact & this is a must to ensure the game continues as long as possible.At least half of each new generation will be better than the previous generation. Look at the recent one, Anubis & Marchosias easily shifted people's attention from Thor & Morrighan.
Secondly is their performance compared to the existing guardians. If their stats (after buffs - please include the buffs as well) is good & they got good skill, then their performance will be good too. If it's good, there's little reason people would say no to it. If you're gonna bring up Mictlan case, Mictlan isn't that bad but he got overshadowed by other guardians of the same generation - Nuada, Sphinx, Barbariccia & Golbez. To me, Mictlan is a buffed up version of Mephistopheles. So I'd choose Mictlan anytime over Memphis or other Plains guardian.
I don't really give "extinct" guardian any extra value. Unless I'm a collector, but I noticed there's lesser collectors in the market now. Those days there are many collectors who will pay a bomb for a card that they want - don't know if anyone saw it but there's once a person offering 400ss for an Ace Genbu several months back.
very well said bro ... i've noticed even are reborn plainside and volcano can't even get a decent type morri , nuada , sphinx ...
if those plainside and volcano guardian is not that good anymore , is it best we try convert it to stones iii so that we can purchase newer guardian with it ?
another use of old plainside + volcano is use it as bidding bullets for auction .. ( correct me if i'm wrong )

some 1 offer me ace sphinx FSeMP or ace serenade FSeMP for my ace shiva reborn lvl70 .. is it a good deal ?
(judging from ace serenade skills and stats , i think a good type mighty specter perform much better )
i kinda like the ace sphinx , but finding a rebirth partner for her is real hard and expensive ....
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btw , i'm looking for death feeder at the usual rate , any abang here got let me know ~