what do u think is the most expensive deck?? what cards in it make it the most expensive??

Well, decks vary a lot. Its hard to say what the most expensive deck is. Usually, a Brotherhood deck will run money cards like Savage Beatdown and Feral Rage... but then some decks have a lot more of the lower priced cards.

My current deck runs about 242$ if you go by the findCCG.com pricing guide.

brotherhood is the most expensive

I would think GK is most expensive with all those alfreds and fizzles.

From what I've seen Klaital is right, the gotham knights can be the most expensive.

Take the 3rd place finishing deck from the Sydney $10k. The estimated value of that deck is $383.92.

Next I found a TNB deck that was played at the Indy $10k at $322.43.

All of the Brotherhood stuff is going down in value, especially TNB stuff.
Maybe the Brave & Bold deck could get up there, with Fizzle + Alfred + Garth + Beast Boy

TB&TB is up there, but F4 Equips takes the cake.

Fantasticar
Signal Flare
Thing: HH or Ghost Rider
Hulks
Clobberin' Times
Savage Beatdowns
Wolverine: NFF
Invisible Woman (soon to be Norrin Radd)

Plus almost no commons: Thing: BG, She-Thing, Tech Upgrade. That's (I think it).

Much more expensive than most other decks.

I was thinking FF as well........

Isn't stretch the 5 drop for F4 equip?
Ghost Rider, Wolverine, and Invisible Woman aren't money rares, at least where I come from.
I suppose Beatdowns would put the deck over the top, even though I don't see why they're still worth so much, with few decks running a full set of beatdowns nowadays.

GK's getting upthere, if they're playing with Have a Blast as well as Alfred and Fizzle.

TT got Beast Boy and Garth, and some might consider Donna Troy

FF does seem like the most expensive though, mainly due to the amount of rares it's packin'.

FF also have more rares than anyone else (X-Men may match them now) so yeah, they're costly.

Magneto's my favourite comic book character, but the fact Brotherhood needs 16 of the most expensive cards in the game (SB, FR, Genosha, and possibly HAB) put me off. So why I am building F4 is beyond me. Luckily, my second favourite character has a much cheaper deck. It's also named after him. The only expensive ones yo need there are HAB (doesn't everyone) and Boris (grr). Due to Boris you can usually get away with just having one of each good rare PT.

Sentinels are probably the cheapest, due to Vomit's dominance. I'd guess Arkham and LoA are too simply because none of their rares are in demand much.

So yeah, I'd say it goes Brotherhood, Gotham, Fantastic Four, but with those two new heavy PTs for the X-Men, the X's could take any of those slots (they already had Cerebro and COTA).