I think aircraft ownership is always likely to be more expensive than rentals unless you don’t suffer from work/family time commitments. That’s not the point though is it? Ownership gives power and flexibility to go where you want when you want. There are many N reg Cirruses (and similar types) with shares available in the U.K. presumably exactly because an FAA IR is a sensible option for many people - if so, it’s a shame that UK CAA regulations makes this desirable.