Leather will keep for ages in the unopened bag. Helps if you have a cold room. Once opened you can reseal the bag and that will help but if you're not using it reasonably quick, you'll have to give it a drink, just like any other greenery. I used to buy that by the box for m/d,v/d and it was still fine over a week later.
You do need to check it when buying. Occasionally you'll have loads of black leaves amongst it (send it back!). I much preferred phoenix with h/t's, just looks nicer, but sometimes when you need to give it away, leather is the option. I can understand how it seems naff when you see it all day, every day and every supermarket bunch has it, but not all of your customers are seeing it every day, so to them it's just 'greenery'

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