I wouldn't say I'm a big SM collector either, but I do still collect SM stuff, but I mostly collect SM merch that are actually practical and useful like stationaries, skincare or beauty products, I have a big collection of SM lip balms
I also have some SM makeup like lipsticks and eyeliners. I don't collect any toys or things that I can't use, I think they are a complete waste of money, like I said I mainly just collect merch that are actually practical and you can use.