What do you consider an expensive card?
As the title says, at what price range do you draw the line and call a card expensive? At what further point do you consider a card too expensive for your tastes?
For me, expensive is everything above 20$. Too expensive is above 150$. I still want to buy a certain number of specific cards above this range somewhere in an undefined future (I still want a legends mana drain or an arabian nights serendib efreet, for example), but above 500$ is currently off the list for me.