I am like that regarding computers, I must have the latest software and hardware, although it is never really easy (cost wise) to get them. I just spent about 4-500 quid on a new PC and I can't see myself spending that much again for a long time.
Other than that, no I don't have to have all the best stuff. I don't have a dvd player (watch them on pc) and I only have a 14" portable to watch regular TV on. I only buy clothes when I need to, and then it's nothing flash and I always look for bargains (not oxfam tho