I disagree. If you wanted to see if a number fell within a certain range, then a regex would be a really bad tool to use. However, if you wanted to match all occurances within some larger string of numbers that fell within a certain range, then the pain of using a regex to match a number range might pay off. So I think the original answer was closer to correct than yours. But I think mine is even closer:

/(^|\D)($range)(\D|$)/
[download]

since the original doesn't find the number in "x5300x".

        - tye (but my friends call me "Tye")