I'm in the market for a 20 - 22ft.walkaround which could be either outboard or sterndrive powered with say a Suzuki 140 fourstroke or a Mercruiser/Volvo installation of a similar hp. 3 questions:- 1. Which will be the cheapest to maintain & service? 2. Which will have the best fuel consumption? 3. Will the sterndrive set up cope with being on a drying mud berth for up to 8 month a year? Don't forget that petrol(gas) here in the UK costs around $5 a gallon so boating in any performance boat is expensive. You lot in the US are really lucky