To me it is strange for a figure to have been mentioned. If a take over question is asked most would say something like "It is not something we have looked into but would be open to a good offer.
Is he planting the seed to those listening? Who knows, but by giving a 4c figure indicates to me he would strongly consider something a lot less.
Can someone tell me his business background, ie: has he a history of start ups and then sell?