Hi Gerry,
I agree totally about your point about 'sitting on' a developing growth area. Just today I have even sent of an enquiry about one possible monetization direction for the developed site. However, it would be daft of me not to check out first whether there was someone or some business or organization who saw the development potential and were willing to pay a price which I would consider a better return than spending my time, effort, and resources developing it for a future return.
(Glad you liked the post by the way - that is exactly how it happened.)