Spatula said:The ELHB explains why there are epic progression for PrCs. But why shouldn't they be? PrCs are just classes that are harder to get into. And from a mechanics standpoint, class abilities that are tied to class level would not be worth much at epic levels if your class level was capped at 10.
It all ties into my feelings that prestige classes are something that should enhance you, and may become a title you have (Archmage, for example) but one should be more than just the prestige class. For that reason, I tend to like prestige classes that don't progress endlessly.