PC on Everlasting Beetle Juice Tonic

I understand there are only 31 of these (or about that number). I got it as part of a trade and am trying to get an idea of its value. The only one I found on guru was put up for sale for 4.2Mil but didn't sell.
TIA!

400e + i have seen them sell for. not sure if it could go for more as i havnt seen one for sale recently.

around 400-500e, sold mine at 100k+400e flat cuz need the ectos to buy shiroken at 600e, anyway, it is kinda hard to sell higher, dunno why though, only 31 one in game, but cant even beat mini beetle or panda or either of those new ones, sadly......

Thanks for the info, that was what I was guessing was the value. I am hoping to use it in a trade to get a Vizu sometime in the near future - that or sell it anyway, but ectos might only be worth 3k soon....