Naturally occurring bacteria in the body starts breaking the body down as soon as the animal ceases living. Letting this process continue for too long can effect the taste of your meat. One author even suggested that the "gamey" taste that some people refer to is the initial stages of spoilage. Get the guys out as soon as practical so you don't have anything to worry about. BTW, the processor I use charges $12 for gutting and I've seen some that charge $20 or more. For most of these guys, it's a disposal issue. They don't want their dumpsters full of guts because they need that space for the rest of the carcass.
"When there was no fowl, we ate crawdad, when there was no crawdad, we ate sand."
"YOU ATE SAND!" - Raising Arizona
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