I've already bought the adventure pack because I think the devs have done a great job with the game. So I don't really need the gold.
Either way there's a couple of points I don't like about the quest system:
1) Why do you only have 24 hours to complete a quest? I don't want to be forced to play everyday, not to mention if I start to play at night I only have some hours left to finish it. And if I make any progress it really doesn't matter because the quest is going to be swapped by a new one with zero progress, not much sense there.
Wouldn't it better a system like Hearthstone were you can keep up to 3 quests? Also in Hearthstone you always keep your old quest so the progress is kept.
2) Some quest are just incredible tedious. Yesterday I was doing the collect 25 allies quest. I spent 2 hours to collect 12 allies. Are the quest really done to take 4 hours of you playing the game a day?
Guys please take a look at the quest system, it really needs some work.