There's a bit wrong on the keycap material side of things. You can't directly compare ABS to PBT in a vacuum - different specific blends of both are used in key

There's a bit wrong on the keycap material side of things. You can't directly compare ABS to PBT in a vacuum - different specific blends of both are used in keycaps, for various price points/purposes/etc. There's also nothing preventing ABS keycaps from having texture. In fact, on the high end side of things, ABS doubleshot keycaps from manufacturers such as GMK are considered to be the gold standard, and PBT is often seen as the more "value" option. Though, I don't think this is accurate for the same reasons that I think the reverse is inaccurate, because you can get plenty of high quality PBT sets. It's a fun hobby, and the amount of customization you can get into to suite whatever your specific desires are is insane. I had never thought I would get into any sort of physical product design, but it's a unique enough niche that it is fairly common for people to design keycap sets, keyboards, etc., and get them built in low (300-2kish unit for keycaps, sometimes even as low to 10-100ish for keyboards) MOQs, and I've ended up designing 3 different keycap sets with a friend of mine.