It's a preference. I don't find it to be utterly unbearable other than it irks me to have the 15% inflation going into something that's almost guaranteed to have no affect on shifting investor, and therefore market behavior not be a prime candidate when searching for funding sources.

Yes, SPS failure isn't the end of the world, worst case scenario we get a shit fest there that's only 13% the size of the current one, whether it comes from a share of the current one or not.

I see, with a successful bts example as a reference point, then it should hopefully function well. Whether they use inflation or not, it's ultimately about the efficient allocation of public goods so their model should prove valuable.