It will be a good idea when CV is calculated correctly (i.e. when all the GAAP or whatever financing rules are applied to book-keeping in AWS). Right now it takes huge drops for things like pre-paying assets (e.g. aircraft orders, either leasing or buying downpayment) and also for paying assets in general (e.g. airport slots).
However, saying that, it's easy for a small airline to get a high CV once they start making money by buying their fleet instead of expanding.
It may be representative of the larger airlines in the second half of the game once they reach maximum capacity and start buying out aircraft too.