When two boats share the same hull type — in this case both the Stamas 317 Aegean Outboard 2012 and the Stamas 345 Aegean Inboard 2012 are deep vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

On paper these two are close siblings in the size department — Stamas 317 Aegean Outboard 2012 at 31,6 ft versus Stamas 345 Aegean Inboard 2012 at 34,4 ft. Weight tells a clearer story for trailering families: the Stamas 345 Aegean Inboard 2012 tips the scales at 1 355 lbs — 660 lbs less than the Stamas 317 Aegean Outboard 2012 at 695 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The Stamas 317 Aegean Outboard 2012 carries a rated maximum of 500 hp. Engine data for the Stamas 345 Aegean Inboard 2012 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Both carry nearly identical fuel loads — 25 gal and 24 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Stamas 345 Aegean Inboard 2012 is rated for 12 passengers, while the Stamas 317 Aegean Outboard 2012 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Stamas 345 Aegean Inboard 2012 could be the deciding factor.