The top tier prize prices are pretty crazy (I'm not saying they should or shouldn't be lowered - I don't mind them being so high, but it really is quite high), but not all of the prices are crazy. I'm happily wearing a 3,000 MGP glamour item, and the pricetag on the triad card packs are pretty spot-on. I don't like that they have the low-level individual cards for sale because they're super easy to get from playing the right NPCs (Moogle and Chocobo in particular, but all of the cards except Nanamo and Cloud are obtainable as win rewards), but a new player may not realize that and waste the MGP on them.

I just wish you were less likely to get a card from a card pack if you already have it... there are some rare cards from the Gold packs which appear to have a lower chance of dropping from the packs and can only be obtained from the gold packs. But, the rest of the cards from the gold packs are easily obtainable in other ways... Three gold packs so far, and only dupes of cards I had already won from NPCs (I really want that Zidane card!)