Was anyone into vanity phone numbers? (3.Viewing)

I found a YellowPages book from the 90s while cleaning out a garage this weekend. Used flip through it as an excuse to take a break... I came across an ad for vanity phone numbers which I thought was pretty neat since they reminded me somewhat of domains. There seem to be a few notable sales. 800-888-8888 for $1.7 million, 800-HOLIDAY and 800-TAXICAB for high six-figures.

So, was anyone here ever into, or is still into, vanity phone numbers?

I seem them on work vans occasionally