If I recall correctly, I was at a trade show with some coworkers where a local Internet consulting company had a booth set up. They had a sign advertising cheap domain registrations, so a couple of us bought domains on the spur of the moment. I didn’t actually put any content up until (looking at some timestamps around here) April of 2001, and then it was just some old pages I used to host at an ISP back in the late Triassic Period.
The amusing thing is, though I don’t think I’ve ever deliberately changed registrars, the registration has changed hands probably half a dozen times, thanks to companies selling their registration business, going out of business, merging, etc.
Better to use medicines at the outset than at the last moment.