What are the best booster packs to spend DP on?

[The Swag Patrol]

I've been farming DP by playing through the campaign duels and reverse duels with the story decks, but idk which card packs are worth spending the DP on

[mimizukari]

http://thecardhub.net/Full-Card-List/

[mimizukari]

unless you're new to the card game, then what kind of playstyle do you like and I'll tell you what cards/packs

[Silver Lining]

Had the same question. Aren't there some general themes to the packs? I noticed Bakura tends to sell Zombie-types and some Ritual summons (and the F, I, N, A, L cards), and Grandpa sells the Exodia parts. But I only know that after buying tons of packs, essentially on a whim since I don't know what I'm getting.

I'm technically a new-ish player (had a solid collection of irl cards growing up, and played Tag Force as a kid too. But haven't revisited the series since then) so I'm not really looking for specific cards or anything, and haven't decided on a playstyle either. I'd just like to know what the difference is between buying from Joey or Bakura, for example, so that I know where to go depending on what I'm looking for. Even if it's as simple as different attributes or monster-types. As it stands, I've just been buying random packs until something catches my eye as being part of a combo, then I buy more and fish for the rest of the combo...

While I'm on it, I also don't really get what the two symbols mean under the seller. One is a single card, and the other a stack of cards. I'm assuming it's something like "cards owned from seller's collection" but I don't get why there's two of them and why they're different... I wish they explained some of this stuff more. They do a fantastic job with the deck builder (explaining what attribute symbols & card colors mean, and letting you filter everything) so it's strange that they just put symbols here without having a legend of some kind.

[Gortz]

The simbols are your collection of that pack the 1st one is how many unique copies you have of that card the 2nd one is the number of cards you have of that pack including repeated ones