I browse WWBW occasionally and noticed something over the year or two. I own a 8335RGS Xeno that I bought new for $2,300. My concern is, the price of the exact same model with no visible or specification changes is increasing. It seems to me like every 8 months to a year it goes up about $100. Now this is just this model on this site, so I'm not sure if this is common marketing among other sites or models as well. As of right now its at $2,500. Anyway it somewhat bothers me that this is happening this fast. Is this normal?