I grew up in a tiny hamlet of about 500 people (going back there in a month) and even we had a grain elevator. However, like many other small places, once the rail line got torn up the elevator was demolished. Even as a young teenager back then (this is over 20 years ago now) I thought it was a shame that they couldn't let such an iconic structure be. However, I think it had more to do with fire and safety hazards, rather than competition, that saw the end of the elevator. Whenever I travel back to the Prairies I always look out for them, but there aren't many left, especially in Manitoba (Saskatchewan is another story).