Im loving this game, not sure if i should pump a 100€ more into the game

So as the title states i really love this game (Joined in cbt) i have standard edition and i feel like its a bummer you only have that much space and a 2x2 container, so im thinking about upgrading, im just not sure if im ready to pump in a 100€, its quite alot for me (well its around 25% of my economy rn) im just wondering, should i stay and wait for a sale or should i just go for it, i really dont know please help