Speaking from experience, this will start to bite a bit when you get past the warranty period. While people have had a varying degree of experiences, for the most part, if you are not extremely handy with a spanner the up keep on a M3W is costly and in some cases involve long bouts of down time.
If mine were to be stolen or wrecked I would probably not buy another right away. There are a lot of vehicles at this price point that may not have the character or pure smile-inducing-fun of the Morgan, but would be just as nice to own and with much less worry, up keep cost and downtime.
I debated for a few days on posting this or not and reworded it several times as I do not regret my purchase and I have enjoyed my M3W very much, all while not having close to the amount of issues some have had. But, this is my experience.