Not really dude, we believe that wasnt the criteria for rejection. We believe in our idea and we will implement that and will go live. Then we will do a soul search depending on how the world reacts
For example, with Google, Google AdSense was the glue that made everything work (profitability, great product, many users, good reputation, ability to have free food.) You might say their demo and pagerank was actually important, but they couldn't even sell that for $1 million dollars. Heck, even right now, nobody would buy their original technology as Yahoo! and MSN must have already surpassed the original PageRank in quality.
Of course, if you are trying to keep your idea secret, then this could be difficult to do.
That's when it hurts.