Different upgrade prices for different cards?

[Taulmaril]

I was thinking that it seems a little odd that it costs the same to upgrade, for example, a time factory as it does to upgrade Eternity.  Personally I think that some cards should be harder/easier to upgrade than others.

I was thinking something along the lines of this:  The price to upgrade a card = 400 electrum x the amount of quantum required to play the (unupgraded) card.

So for example, Eternity (5 time) would upgrade at 2000 while Boneyard (3 death) upgrades at 1200.

Thoughts?

I also thought that selling upgraded cards would have a similar system like this.  Selling an upgraded Anubis shouldnt give you the same $ as selling a pillar, i my opinion anyway.

[PuppyChow]

While I agree in concept, I don't agree with your actual solution. Dragons shouldn't cost 4000+ to upgrade.

Instead I would say something simpler: Pillars cost 1000, everything else cost 1500.

[Bloodshadow]

This has been suggested SO many times...

My solution (probably copied from someone else, but I forgot) is: Card price x 10 + 500.

The quantum cost does not determine how powerful the card is; the PRICE in electrums determines how powerful the card is. Thus, the price, not the cost, should determine the upgrade price.

[jmizzle7]

This has been suggested SO many times...

My solution (probably copied from someone else, but I forgot) is: Card price x 100 + 500.

I think you mean Card price x 10 + 500. I don't think anybody would upgrade a Phase Dragon for 11,400 electrum. 

[Bloodshadow]

Oops. Yes, price times 10. That was a small typo.