Hopefully Apple restocks one more time. I would jump on it if they do though. Winter bands are usually the shortest lived and this color is clearly very popular. There hasn’t been any sign of it at resellers like Amazon and Best But (even though Kumquat and Northern Blue are available at Amazon). So, I wouldn’t expect a sale on Plum anytime soon (and maybe not ever). It’s definitely going to be up there with the MT/AG Nike band as the hardest to find from 2020 once it’s discontinued. Fingers crossed for you!Noooooooo I hope it comes back again. I was waiting to purchase it on sale. I hope I didn’t wait too long.
Not a particularly exciting band, but here’s a 44mm Deep Navy sport band NIB for $30 OBO.

Apple OEM Genuine 44MM Watch Sport Band for Apple Watch Series 4 5 | eBay
Apple OEM Genuine 44MM Watch Sport Band for Apple Watch Series 4 5. Condition is "New with tags". Shipped with USPS First Class.
www.ebay.com