That is a very good site for Precise/Topping models and parts. There's another website that talks about the history of these models at
http://aviation.watergeek.eu/precise_models_inc.html.
I recently acquired my first Precise model--a 1/40 scale F-16 in ROCAF markings, and I have to say that I was highly impressed with its quality. The finish and detail was much nicer than what you'd typically find nowadays, particularly compared with most wooden models coming from the Phillipines. I can understand why some go to great lengths to collect these models. They have a certain quality and character you rarely find in modern models.