So, I guess those that have lived with technology for a number of years are used to the concept of diminishing returns. For those that are not familiar it is basically where you take increasing models/types of equipment and as the price increases you are given an almost exponential curve of discernable differences. Example: take a HiFi system of $1,000, $2,000 and $4,000. Does the $2k system sound twice as good as the $1k system? Possibly but probably not (quite). Now take the $4k system...... Does that sound twice as good as the $2k? Almost definitely not (but its still better). Now take an $8k system and you are into doubling the cost but only getting a small increase in discernable difference and you are definitely not doubling the quality each time. Now, apply the same to cameras, the question must be asked..... Is the difference in image quality between the X3 and the X5 WORTH $675 v $2,775 or does the X5 give anything near over four times the bump in quality? Does it give you even three times or even double the quality of the X5? Answers on a postcard....... I think it will have to be the X5R to get that all important bump in quality that everybody is salivating for!