The original yellow Wisp pet has never been offered in a sale - it was on offer through a timed goal at the start of the Search for Sabina story line. Sort of like how the Overgrown buildings were on a timed goal but the goals themselves were not timed.
However, the Fire Fly and Grand Fire Fly have been offered in the market and offer the Wisp Essence like the original Wisp so keep an eye out for those!
The hub that SW magically keeps up to date for us all to use is the best place to find all this type of info.
Go to the hub (link at the top of discussions), inventory guide then 'C' and you find
Cloudberry (0/99)
Info: A rare and delicious glowing fruit that can be found by tending to Cloudberry Bushes.
Found: Cloudberry Bushes, wisp (pet), Firefly, Grand Firefly
Uses: item in Enchanted Lantern craft (6), item in Explorer's Permit craft (8)
Note: item released during Part 1 of Search for Sabina
OK, this is a bit off-topic here, but let me quickly offer some tips, anyway:
1. Do you have a troll sparring pit or any other way to "park" a monster somewhere while you collect your cloudberry bushes, so no faun can spawn?
2. Did you know that if you active the harvest champion boost, by some miracle this also makes *double* cloudberries drop from *every* collection (although sometimes it takes a handful of collections before this is true - but then it holds up!)? It's truly magical!
Thanks for this tip. The difficulty with parking a monster though is that the wisp won't spawn :-/ And it's the wisp that I need more than cloudberries, really. I really now wish I had finished that goal that gave the wisp pet! I'd buy it if S8 offered it in the store, too.
Yeah, that won't work then. :-( I wasn't playing when the storyline originally released and it really sucks that later players don't even habe the chance to get the wisp pet. I did buy the forest wisp pet with "leftover" gems from the last sale, though (following recommendations here, in fact), and I'm really happy I did!