Dithering over a new bike. My current bike is a Diamondback Haanjo which I quite like, but it’s a pretty conventional gravel bike so the handling is a bit slow. Nothing wrong with that, but there’s almost no gravel where I live (at least not that I’ve found). My riding is approximately 99.9% road and 0.1% gravel (which is ridable on 32s). I’ve decided I want something that handles more like a standard road bike.
So, do I buy a “gravel race” bike (something along the lines of a Factor LS, Specialized Crux, Cervelo Aspero, etc) that is basically a road bike that will fit 40+ tires to replace my Haanjo?
Or, do I buy a straight-ahead road bike and try to keep my Haanjo, knowing that I’d probably never again ride it more than a couple times a year?
For background, I have completely unremarkable fitness and zero interest in participating in road racing. I have a non-zero (but incredibly low) interest in participating in gravel events, but hate to travel. So the first option would allow for event participation even though I don’t like participating in events. 
I’m also pretty allergic to having more than one bike. I’ll almost certainly end up getting rid of the Haanjo regardless of which choice I make. And if I buy a road bike, and sell the Haanjo, I’ll almost certainly buy another gravel bike in a few years because I’m quite stupid!