It depends on the usage of the Super8 Camera, is the owner very enthusiastic into film making or want to own the gadget for owning it?
The price of the camera can go from a nickel toward 5xx UK Pounds, depend on the desired features, macro, variable frame rate, auto/manual exposure, time-lapse, slow motion all come with a price, and some models won't expose the popular Kodak reversal 64T correctly, have a look at
Onsuper8 Cameras and
Super8wiki for some ideas and information.
Braun Nizo, Bauer, Canon, Nikon all have very good super8 cameras, Nizo Professional is an all-rounder, with all the mentioned features and eat only AA batteries, price can go from 3xx EUR.
Do you/he want to edit the film analogue way or digital way?or straight projection through super8 projector?
A cartridge of Super8 (50ft) only last 2-3.5 mins depend on frame rate, in UK, cartridge+process+telecine to dvd/dv/files cost 52 UK pounds per 50 feet, or 26 UK pounds for just the film+process.
Personally, the money needed to make a short film on 8mm is very demanding, of course cheaper compare to 16mm/35mm without losing the film feel, but shooting super8 today is like shooting half frame film photography on Olympus Pen in the digital age. I was looking for a Super8 camera recently to film a short, but defeated by the cost of film/process/telecine... thought Film Photgraphy is expensive already... Would suggest to get a DV cam or HD Cam to shoot without worrying about film stock then edit on computer.
For more Super8 info. and shops, have a look at:
Shops:
http://www.super8ireland.com/listofitems.html
http://www.super8camera-shop.com/shop/
Information:
http://www.film.project-consultant.net/index.html
http://www.cinematography.com/index.php?showforum=31