There should have been some mechanic to increase the odds of getting trophies you did not have, like the lottery did in Melee. As it stands, I have no real incentive to play the coin launcher because I have almost every trophy in the game and playing the coin launcher for hours for a minimal chance of getting one new trophy is not worth it. If I could sacrifice coins to increase the odds of getting new trophies, that'd be great. It'd still take shooting them, mind you, but the implementation of that concept from Melee would be great. Even if it were something as silly as using 500 coins to increase the odds of new trophies appearing, it'd be worth it.
As it is now, I'd rather just romp through SSE on Intense.