I use WETS on mostly things like Rubber Weatherstipping, the softer stuff, and choose to use other, less expensive products on Tires, plastic Body Cladding.
Or, I might choose to use more expensive coatings.
But I like WETS for some things other than auto detailing.
Example:
I'll use it on certain Handgun Grips, like my Walther PPK/S Black Plastic Grips, beautiful after a dressing, and many other little odd and end things.
Pricey, yeah, and it has gotten pricier more recently, but I still feel it's a good product to have in one's arsenal to use in certain special instances.
In fact today, I did something I never did before with WETS. I applied it to the Wiper Blades on my Daily Driver.
I don't know how this will work out yet, but sure seen lots of crud come off the blades, and they felt so buttery soft and slick after.
I let them dry about 25 minutes before dropping them back down upon the glass.
My weather conditions here eat wiper blades like candy.