>>535985131
If they're shardable/easy to acquire, and I saved lunacy, I can save my lunacy for a future banner and lose nothing.
If they're unshardable, and I saved lunacy, and I need +200 pulls to be sure, then I win.

If they're shardable/easy to acquire, and I didn't save lunacy, then I can acquire them anyways.
If they're unshardable, and I didn't save lunacy, I miss out on the only limited content in the game.

The only rational move is to save.
(Schizos also know this and hope you sell all your lunacy)