In defense of Expert Packs

The 100k packs have obvious purposes: faster collection of ultra rare, character, or weapon cards, respectively. But does this make Expert option obsolete?

Not really. One of the features of Expert (& Advanced, Basic) packs is the chance to gain a second random card of the same tier as the garunteed card. The 100k packs guarantee two rare tier cards already, and the chance of there being a third same-tier card is either tiny or nonexistent.

Since spending 100k on Expert packs also grants two rare cards you're guaranteed to have the same minimum payout of collectable items, but with a chance of gaining an extra card in each pack. (The occurance rate seems to be slightly higher than an ultra rare payout, so it's maybe 10-15%?)

So, the benefit is that you'll complete your total collection of rare cards more quickly. This might not have been important pre-1.09 when the total rare item pool was relatively small, but now that character cards have doubled and weapon cards have quadrupled it's worth considering.