Yes the small diesel market has cooled considerably from the peak. The fact that Lister Petter is no more doesn't help resale, neither does the fact the holder of most factory parts thinks they are made of gold. Cheap solar certainly cut into the diesel market. I think another factor is people have gradualy found out that the everlasting engine lore attached to Lister engines is mostly that, lore, especially when operated LOTS of hours,. Certain Lister engines remain quite marketable. The CS series in particular. Those air cooled engine pictured can be had around here for $4-500 in good running order and in Europe for the price of scrap. There is also the purchase cost/ operating cost factor for a less than 10HP power plant. Its just plain cheaper to buy and operate a Honda gasoline engine.