With many ICO's not selling so much of their tokens or not reaching the hard cap, many of these token's price always plummeted after entering the exchange. With the excess tokens that are not sold during the ICO are being burned, it is really possible that a fewer circulating supply of tokens will make it rarer thus it is more valuable? More valuable meaning pricier thus each holder of token will get more from what they bought? Or it is actually the opposite? What is your opinion about?

Please don't hate me for my thinking. If you know that I'm wrong, please correct me.