A vacuum cleaner? Me? Vacuum de-clogger more like, especially if refurbs from charity shops are anything to go by.
Reminds me of when I last bought a Hoover Junior. Mate of mine wanted one for ages (not a collector) and pointed out one near his home. Duly purchased for £30, had a PAT test on it.
However, it was seriously blocked up with dirt. Took me a few good hours to clean it out, de-clog it and then have a shower afterwards. Such is the life of a collector if you rescue old vacs.