I use a motor quite a bit. I don't mind it at all. Perhaps i am not a "true" sailor (though I am bored in a power boat). I enjoy navigation and getting from point A to point B. I enjoy sailing when sailing is enjoyable - i.e. when the wind is right (not too strong and not too light and in the direction that helps me move where I want to go). If none of this is true - I turn a key and go. My boat is in essence a motor-sailor (she has a relatively big engine) so no qualms about it.
I think this is all about doing what you like, not what someone else thinks you should do.