Sit in kayak or sit on?

For a couple reasons I like sit on.

I am tall and have big feet - not many kayaks available. 

I don't think I want to be trapped inside (or need to learn how to write myself if dumped upside down). 

Bad side of open is it is a wet ride in the waves but fun in the ocean and surf as you can get in and out pretty easily.

I suppose it will come down to how YOU are going to use it to make the best decision. Do you want a dry ride or a wet ride. River of flat water etc.  

I'd prefer a sit in kayak