I wouldn`t because it seems to me that the "invention" has to be well and truly proven before they invest. I have often thought (over many years) that there must be a need for a middle-man. There must be quite a few people with money to invest in new ideas, and most people with the ideas need money. There must be such intrductory agents around but alas, although having plenty of vague ideas for making life easier, I have never been bold enough to take it further and I certainly (so far) have never had money to invest in other peoples although I would like to.