If this is a reiteration of an already posted suggestion, my apologies; could not find such.
The daily purchase of the Perfume, for those of us who like to use it regularly, is a little annoying so I suggest that you put one in as a 30-Day again and keep the 24-hour one, too.
@ 25 diamonds each, a 30-Day would be approximately 760 Diamonds, even I wouldn't pay quite that much but if you set the price to, say, between a permanent mount and no more than 550 Diamonds I'd definitely buy it! And, I doubt I am the only person onboard who would.
Just a suggestion...