I say no, I'd rather buy the te at that point, and buy the card itself. Way too low chances of getting cards.
Still a bit sore with the maiden packs, lol got nothing worth mentioning.
I've spent about $100+ and I've only gotten one 5* card.
It's like other TCG's you don't buy booster packs (Yu-Gi-Oh!) for one card, you seek out a single card seller.
Although I know the rush you can get when buying the packs, sometimes it pays off, most of the time it doesn't.
I got a premium mega pack during the last event 3000 coins, and got nothing but 4*'s. The only thing worth mentioning from that pack was the 110 Maiden Crowns...