I'd say there is another category of callers, other than say Wurster and Andy Earles, who are kinda regular show characters just by doing their very own schtick, maybe somewhat urged to do so by Tom, Spike being the most obvious. And there are people who aspire to that status, a kind of attention-seeking behavior. Oftentimes this strategy seems not to work very well, e.g. the Goshen Kids, James. Tom doesn't seem to take to callers who try a little too hard.
