Although I agree that a cheaper price would be nice, I have only recently bought some Quest Potions and wrote 2 posts about it(Quest Potion 2). It seems that it is good value for money.
I can understand that new players will suffer as the DEC levels are still low and you need to use it to improve your deck.
Happy Battling
!BEER
Oh, i have gotten shit the last 5 quests. around 400 dec total and 1 ordinary card. But thats ok.. as i did not pay 750 dec for them each.
I will see how it goes with the remaining 9, as this was the only 2 I have used thus far, perhaps I was lucky!
good luck m8!