These sorts of calculations always do my head in.

It’s likely that the $4M has some rate of return, meaning that you could do this on a bit less. Well, as long as the return exceeded the increase in median income each year. You don’t want the capital to run out before you.

Having been on a few Segway tours I was surprised when they stopped making them. Easy to learn, fun to ride. Eventually they will age out and be gone. I wouldn’t buy one for myself to have at home, but for whizzing around sightseeing when on holiday they’re great.