Is being positive, smart?

I have been thinking about this for days and I would like to know what you your take on this is:
Do a lot of people think it is stupid to think positively? Do positive people seem less interesting than people who are negative and have lots of dramas? I get this feeling from some people that it is sort of looked down on in a "Isn't she sweet and bubbly, but not too smart" kind of way. As a positive person some people treat me as if I am just not with it or informed. I am living with my head in the sand or I am in denial about life. I sometimes have felt put down for being upbeat when times are tough (never by any of you!). I think it is time for people to get with it and realize that the old paradigm is shifting. Positive is smart, it is interesting and it is a whole lot more fun than being gloomy and negative. It is not about looking away from the hard stuff, it is about accepting things as they are, but being excited about the future. It's about hope.
Is it soft headed to believe in miracles? Even when you have seen evidence of them all around you? Is it stupid to live your life looking at the bright side of things, more intellectual to see the
negative (realistic) side? It doesn't really matter, but sometimes it bugs me :-). I guess that is a bit negative, but just because I'm a positive person it does not mean I am perfect :-).
Happy Tuesday and thank all of you who sent healing messages to me and my mom, we appreciate it. XOXO