Trace,

we have a saab as a runaround, but I run my 4x4 sapph every day, hence it's stg 1 for reliability.

Nat's is stg 3 so we drive it slightly less often.

As for shows, well, if it's not too far (1 to 1.5 hours drive), we typically take both, if it's further we'll only take one. Same for meets, although we usually only take one so I can have a few beers

Obviously, running three cars means three insurance policies, three tax discs, etc... so the costs do add up.
And taking two to shows means extra fuel and maintenance costs and double the risk of breaking down

But I'd say it's worth it, what you thinking of doing ?