I think the general dismay at the immense inertia and general rubbishness of British politics is what allows Yes support to withstand such scrutiny. I would appreciate being rid of FPTP, constant speculation of UKIP triumph, the Con/Lab duarchy, the HoL, and Boris Johnson. Sometimes I wonder if it could actually be worth the marginal economic dent.
In fact the only part of our current state that I actually would like to keep in case of independence is a traditional uncodified constitution. I don't see the point: good parts of a modern constitution can be ignored if a democracy falls into enough disrepair regardless of the de jure inviolability of their laws; the parts that prove outdated only take longer to rectify.