I love this book and would certainly place it on my list of most influential books along with Treasure Island and 20000 Leagues under the Sea. These three books combined to spark my imagination for adventure and most certainly laid the groundwork for my later adoption of D&D as a hobby.
The thing I liked about the story of Crusoe was the fact that this terrible disaster of being marooned on a desert island was actually the making of the man. His life which had until then been aimless and material was transformed. So maybe this wasn't such a terrible day after all.