There are various ways to answer a valid question of someone who seeks accurate information regarding something they are unsure of right?Pancake...as Rodeobob says the 2 are collectable because they arent as common,their vastly different in engine design to the victas that surround them and they are a first or shall we say a semi radical design for their time.Many people collect these so yes their value is a little higher.check the forums so you can understand better,and you will see a bit of info on the lightweight and Twin,check the engines and you will notcie how they were designed to suit the 2 models.For most the Twin is more desirable,but they did have engine...Well some will dispute were unreliable,and the parts surrounding them.Ive owned 2 and they both ran beautifully.As most will state like anything unusual or of short series run mowers or otherwise,will be more expensive.Hope this has helped you understand how some models vary in price....:)
