Hey Jagger.
I don't live there, and have only visited once - for an extended long weekend. So obviously I don't have tonnes of info.
However, some random info for you:
-PEI is small. REAL small. You can drive around it in a handful of hours. Not sure if that really relates to your question, but just thought that I would throw it out there anyways

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-Pretty much everywhere we went people had cabins and cottages available for rent from tourists. Is that what you are looking at doing?
-It is a gorgeous island. Absolutely stunning. But see above.
-I guess for me it depends on what you are looking at having it for. Investment? Business? Build a couple of cabins on there and rent them out, except when you come down to visit? Etc?