Can anyone who likes coins specify why? (Concisely, and without snark; I gave up halfway through the other thread). Also, let me first anticipate the following reasons:
"I have enough coins because I have a large DLC library/like to play different songs."
Nice, but still, you'd be able to play like that even if there were no coins.
"I like to play without powerups."
"I like the Facebook integration (Score Duels and Goals)."
To both, I answer: great, but you could still enjoy that even if there were no coins.
"I'd like to get a reward for Score Duels and Goals."
Now this is valid; I'd say, however, that coins are not needed. You could be rewarded in Blitz Cred and there wouldn't be any problem then.
If there is any other valid reason for keeping coins (when their negative side has already been well established) I'd love to hear it, cause I haven't seen/can't think of any. I'll admit as I don't like the coin system I could be biased and therefore can't think of something obviously positive for coins, which is why I ask.