^^^I agree that the price is a bit high, but the fact that he has multiple vintage track frames in stock at one time is pretty cool. To my knowledge, there's not a lot of people keeping 10-20 vintage frames in stock that are all available for sale to anyone.... He should certainly be able to charge more for that service and make a bit of money out of it.
If you find a frame you really like, I don't think there is a problem with paying a little more than its *worth* to get it. It might be a while before a similar Gitane pops up on eBay with a well maintained hs and bb in this same size.