I am contemplating saving my keys or using them for this current Loot Rush

The final prize, the Jade Marble Killshot skin, is both a mech I dont own, and i dont really like the skin... so I dont see any point to open any more Fortune Vaults for this week.

Is there any other reason to continue to open Fortune Vaults for the Loot Rush when the incentive isnt enticing enough? If not, should there be?

A idea: if a player doesnt like a prize that's set by the Loot Rush (a garunteed prize, not the randomized ones you get from the Fortune Vaults) you have an option to choose a ingame currency instead,but you forfeit the original prize. 

The more Mark's it requires to win the prize, the higher the alternate currency prize would be (30 mark alternate choice would be credits, 350 mark alternate choice would be A-coins). And if the original prize is allready a currency, the alternate choice would be a skin (credits alternate choice would be a rare skin set by the current week etc)

These alternate choice prizes would help diversify players, as I imagine players in the late game dont need currency, while players in the early game who dont own certain mechs dont want skins, it gives players more control, and gives them more reason to keep playing and keep paying for tickets

Or, simply, an option to save your Mark's for  another weeks Loot Rush