Wow! $60 is bad enough here, but I don't even know who their target audience is in Vietnam at that price. I know Asian people are a lot more frugal.

I actually recently 3d printed a few lego clone bricks for my kid, and they work fine when connected to real ones. I think I might print a big bucket of them. Will cost very little to print in resin, and a little bit of time to clean them but not bad. On the last batch I used some resin that was a little brittle, but now I have this really hard plastic stuff that can bend a lot without breaking.