If you think about it, the fact that we ordered $1,000+ phones is precisely why the $45 is not affordable. :-$
Like I said, I do get the concerns of the Whitestone fans, and at some point I may get a Whitestone Dome myself. Personally I can easily afford a $45 screen protector. The question is: is it justified by the perceived risk to my screen? Having been a smartphone user for almost a decade now I've dropped my phone a couple times. I've never had any blunt force to my screen though. That would require a special kind of drop onto a surface with protruding objects (e.g. rocky terrain outdoors). If you work outdoors I can see Whitestone Dome being a good investment. But I'm at home or in an office all day, the only time I go outside is for a jog and I've got a Galaxy Watch for that. If that's your lifestyle, I guess I'm just not seeing the case for Whitestone Dome.
But hey, if you like it that's awesome and I'd love to hear how it works with your S10+ once we all get our phones!