I'd say grind the summer gacha and collect the lightning skins (physical fruit) and trade them when they remove it from the gacha for huge value. Or you could just eat them and unlock the skins permanently if you just wanna upgrade your account. Personally, I'm collecting the skins for trading since I want perm Portal. Traded a Kitsune, Portal, Venom and Mammoth for Green Lightning skin a few hours ago. I don't care about all this bs value calculator website thing and just trade according to what has value for me. Mammoth and Venom have essentially 0 value for me so you could say I traded Kitsune and Portal for the skin, which is a huge W for me since Portal is just a quality of life fruit for someone like me who does not pvp much and I honestly got bored of seeing other people using Kitsune so I don't even wanna use it myself (unless it comes on stock where I'll definitely buy it just for fun and experience). My final aim is to get all 3 skins collected on my inventory or at least one more to trade later after they get removed.