I have several of these too... My personal favourites are the Hovels tomb and the Monolith square blockhouse with tower. Excellent and evocative models both.
I keep looking at the never-ending supply of plywood / MDF hand-made jobs on eBay - there now seem to be two or three people making them, and I must admit they look quite superbly complicated - and large! I was sorely tempted by the entire Afghan hillfort complex. But... I do just worry that they still look a little like plywood covered in Tetrion... Does anyone have any of these in the flesh? Are they as good as they look in a thumbnail?
Someone must have a huge collection, because they keep on churning them out!