What? Do you loose a ship every couple of hours?
I think that's actually part of the problem with the current insurance setup - it means that Frontier can't really implement anything particularly "risky but profitable" where you
do lose your ship regularly if you try it.
Let's say there's an activity which pays 10 million on successful completion - pretty good pay. In a Cutter, you'd need to be able to succeed probably 9 times out of 10 to make a decent profit ... at which point it's not really a risky activity and if you can do it right 9 times you can do it right a 10th.
In an FDL or Python, you'd only need to do succeed every other time, which might be possible to balance as a "risky but profitable and fun activity" ... except that if the Cutter pilot can succeed 9 in 10, then so can the FDL/Python pilot.
I suggest that you outfit a shield to your ships... Really helps cut down on the re-buys.
...and therefore, the balance of PvE content is such that fitting a shield and using a minimal amount of sense makes you basically immune to rebuys. (And fitting a proper-sized shield lets you escape PvP too)
...and the balance of PvE earnings is such that unless you fly a large ship, rebuys are for trivial amounts anyway.
So why bother having them? There must be a better way to discourage people from losing their ship that actually allows for non-trivial risks to exist.