I took a break from mechanical keyboards because I had a keyboard I was happy with. Now I need another for a second desk and it seems like all the keyboards people recommend now are fully pre-built.
This doesn’t make sense to me, I really like the ability to chose my switches and keycaps (especially my keycaps). I don’t see why you would get a keyboard that already has these when the first thing your going to do is replace them.


Nothing wrong with plastic, I own a lot of plastic boards of one sort or another.
I think you hit the nail on the head when it comes to volume as a big part of the reason, especially either side of the bubble when keyboards were very popular. I own 40s add on sets for things like GMK Coral that something crazy like only ten of were made.That coupled with being made in Germany for GMK or the US for Signature Plastics (SP), you get far higher manufacturing costs.
I think discounting the higher quality of GMK or SP vs. a really cheap set is a mistake. I think its fine to say that the significant jump in price isn’t worth it for you, but the quality is noticeably better in all areas. Couple that with GB sets offering proper 40s support, which if you have a board that needs it is a deal breaker without.