petrol is different you cant drive to work with out petrol, but you can go buy a different car. and with apple and DSLR's not everyone has one because either its of no interest or refuse to pay the perceived premium.
Glasses and parkers have been way off recently, but I think they are more designed for the commercial buyer not the private buyer. but people use them as they are a good guide to prices. not the bible, but a guide.
perceived market value is market value that's the point, something is only worth what someone is willing to pay, not what the owner thinks its worth. only time you can dictate price is if its a sellers market, and its not with the zed. as supply out stripes demand. and will do for many years to come. and people will walk away if you over price something. as I mentioned above. there were lots of cars for sale on thr R32 club which hd been up for over 18 months as no one was willing to pay the over inflated prices for a golf. same reason people won't pay over the odds for a Nissan (no matter how good the car is)
The zeds popularity is its undoing it sold loads. people think its rare but its surprisingly common you only have to look at the sales figures and that's not including the imports brought over as well.
as for the zed being a future classic, i'm not so sure. defo a future cult car, but will it be a classic, its too early to tell and the car to young. its only 9 years old. you've got another 20 odd years before you'll start to see if it becomes a real classic.
as for depreciation, most of the members on here wouldn't know what depreciation is. as they bought thecars recently and pretty cheaply. go speak to the guys who paid the original £30k price tag, or those who went through the 2k a year price drop at the start of the economic crisis.
as for sports car ownership I've had a few and would expect to loose roughly about 1k a year in ownership depreciation. its what sports cars do. especially if they are common.
you think that's bad. I bought a 10 year old xkr where the previous 3 owners had lost the best part of 70k in 5 years. now that's depreciation.