My suggestion: Every 5 days (Clash of the Titans day), Daily Deadpool drops “Swanky” tokens, which pull from a fancier, 80-token vault.
That’s basically it. It’d be a way to save up for good stuff a little faster than the current method (200 days rather than 600 to buy out the whole vault) and chance for the Daily to cycle a bit more often. The Swanky Vault could always have a couple covers for the Clash’s required 4-star, letting people access that guy with cold hard cash if they so desire. And the one-day limited vault effect would instill an exciting, buying-promoting feeling of “oh, today’s Swanky Vault has a really good cover selection, maybe I could afford to risk a 10- or 40- pull along with the 10 I cash in”.