>>11659572Buying toys as an investment is never a good idea. That said, almost all soft vinyl/sofubi are made in limited runs and generally go up in value over time. The maker matters less than how many were made in a run and how desirable the mold or colorway is.
I have several from Marusan, Marmit, Bullmark and Gigabrain. I personally like the Marmit sculpts the best, but its all personal opinion. Soft vinyl is made to "look cool" and that's it. Base your entire decision to get one on how you think it looks, not how much it might eventually be worth. Keep the header from the bag and you can sell it later if you choose.