I live on the driest continent on Earth. You know what gets all wet and slippery? Ya hands after some hard work. I like G10, that shows what does the job. Of course, Micarta is a huge step above that, and TeroTuf even more.
Point being, people want it, please offer it
Fair enough, I'll put some TT in the mix on the next run. I probably won't show it, but it will be there if requested.
My thoughts on some of these materials:
TT has light weight, grip when wet or dry and shock absorption. IMO it's less attractive and it isn't as stable as other synthetics, but its properties make it ideal on a chopper. To me it's a little unsightly and its attributes aren't as well utilized on something like an EDC, I like my EDC to be a little dressier, but the EDC is a working tool and it's a good material for sweaty hands so I will make some. I don't think it would be a sanitary material to use in the kitchen or skinning game.
Micarta is heavier than TT but lighter than G10. Good grip wet or dry. It's attractive and stable and works well in most applications. It's strong and has the best wear resistance so it will hold up over years of hard use without breaking down. Not all micarta is created equal, I stay away from the import stuff and try to stick to known proven quality materials. The micarta I use is well impregnated and I consider it sanitary in the kitchen and skinning game.
G10 is heavy and has less grip and poor shock absorption. It is very stable, attractive, sanitary and strong. It's good on small scales where the weight difference is minimal and impact is a non-issue. Despite its popularity I wouldn't want it on a chopper. Despite being hard and having high glass fiber content it has mediocre abrasion resistance and extended use in a gritty sheath will cause it to wear. Probably not enough to cause a functional problem, but I'd stick to micarta if I were carrying a lot in gritty locations.
Wood is nice.
These thoughts are applicable if the knife is being used hard. I recognize that folks enjoy acquiring knives for many reasons, and I have a lot of gratitude for the collectors who make this venture possible, but at the end of the day I am dedicated to building hard use tools for end users who use them hard. I have carried and used knives for a long time and I used to go through about one a year. They'd wear down or break down. I graduated to better knives that held up better, perform better and are safer to use. That's my experience. And I build my work for that person like me who works things hard and wears things out. I'm focused on building hard use working tools. So, when I don't offer G10 on a big knife, it's because I wouldn't want it there. A collector may feel different, and that collector's point of view is perfectly valid, but I have to make judgments based on personal experience and go with what I know.