I'm definitely of the KISS mindset when on a serious backpack. I'm not a gram Nazi, but I like going light. The Caldera Cone fits with that mindset.
Yeah, the only thing I can think of with the MSR kettle as to why more people don't have them is the expense. REI brand Ti cookware is decidedly cheaper. But doggone that MSR kettle is a nice size for solo+ hiking. and it's a versatile piece of equipment. I'm sure getting my money's worth out of mine -- which I bought used on eBay.
Let us know how it goes with the Tri-Ti when you get a chance to use it,
HJ