I also do not value so-called “portability”. I walk out of the house with whatever. On the other hand, I enjoy undersized just for the fun of it. Spin Dynamics Smooth Move and YYF 888 are favourites. The Supra was a favourite for a while, too. In the “more or less mid-sized” category (even though they claim it’s undersized, I disagree) is the Werrd Minute, which is a fantastic yoyo.
So at 52mm, I could be convinced to try one of these as an impulse buy. 