I totally agree with this; maybe a rather uncommon "silver box" with 500 crystals and then a more commonly appearing "bronze box" at maybe 50 crystals. Sorry this isn't on topic, but this idea was suggested here already.

Great question, hopefully someone could answer soon.

Wow, this sucks because I'm only Sergeant-major and can't buy any good upgrades like Hornet M1 or Railgun M1. :angry: I guess I'll have to rank up and wait for another sale.

Wonderful, I was gonna wait to get Viking M1, but instead jumped for Titan instead. It's a huge advantage at my rank and I'm getting mad D/L's.