Nothing wrong with Gillette Techs. I have two, but I only paid for one (eight quid), won the other in a raffle.Nice to hear about some vintage razors other than the Gillette Tech. Are there any from that list you'd recommend to someone new to vintage?
My favourite of the above is probably the Fashion Razor, but being mostly plastic and an unusual shape it's not for everyone.
Everyone needs a Micromatic. The pinnacle of razor design. They should have stopped inventing razors there and then.
Everyone needs a 1912. Cheap as chips. A very clever design for something over 100 years old.
Keep Kampfe Star razors for later.