Well UR has become a sellers market, it has lost all semblance to any normal free market economy, with guilds manipulating card prices, trough mass buy outs or vote-outs. Add this the fact that the random selection of cards is no longer completely random as far as I can tell: It used to be that new cards had equal chance to be in a NB pack
then cards from the previous NB release still in NB, for the last year, the chances of getting the NEW cards you want is significantly smaller than the chance to get one from the last month. I know this is meant to stimulate the buying of credits, but it just feels unfair to me, as rich players will just become richer and poor players will stay on the same level.
So new cards will always be insanely priced until 2 to 4 weeks later when they actually get supplied in packages according to rarity instead of how new they are.
and I vow that one release I bought 20 NB packs
to get a Tsubame
and didnt get one, two weeks later I bought 5 packs
and got 3 tsubame's, random ....