The problem is that Dropbox isn't that complicated. They were able to win in the beginning because they were a novel idea. Now that they have proven the busi

The problem is that Dropbox isn't that complicated. They were able to win in the beginning because they were a novel idea. Now that they have proven the business model, it will invite competitors (which has already happened). A bigger company with more resources will eventually be able to put them out of business. It would have been better to cash out. Unless they truly have something proprietary with a higher barrier to entry, it will be a difficult road ahead.