i had a pack of beetles like the one in >>9
the horn unions and other interchangeable bits broke down after couple of months ( but they were very cheap to begin with)
I had lots of fun with stuff like the DQ stacking toys >>19
( they are still functional after 2 years in my collection)
Gacha stuff can be very hit or miss
Thinks like "Hagen no Zista" some soldier used to post was of good quality.
But others like Hone Hone (skeleton dinos with interchanging pieces) are very meh (and they had monster Hunter and Evangelion sets, but still their articulations come off easily)
Also, most of the time you will end up buying on Raku, HLJ or AmiAmi for these, and the shipping cost can be high.