I brought my 74 Commando new in June in 76 (old stock but could have brought a new M111 but was a bit dearer) I payed $1,999 on the road, over 40 years of ownership and many more $$$ over that time I wouldn't even take a guest how much money I have put into it, but here in Aussie land the price of Nortons have gone through the roof, a good one will bring over $12,000, a very good one I have seen them for over $16,000 and unrestored ones are bring between $6,000 and $10,000, have seen basket cases going for anywhere from $4,500 up to $6,000 and they are just going to keep going up.
A lot more Nortons were exported to the US than they were here in Australia and it shows in the prices, but sometimes you can be lucky and find a bargin.
Ashley