This is a niche hobby, but it's like any hobby. The paticipants of that hobby is what makes it strong. If we want to keep our machines going strong there will be a demand within the hobby to maintain that. There will always be a group that finds a way to do something and others prepared to share or develop parts. If the interest wanes so does our hobby. Seems to be stronger than ever these days as a lot of newbies have come on board in the last 3 or 4 years.