Driddle said:I don't see that generalization.
In campaigns now, sans Driddle limits, there are multiclassed (10/10) spellcasters who do very well for themselves.
IMHO, in the early levels, the game favors the high hp, fighter types. At the high levels, sans driddle limits, the game favors the wizard types. Wish and all that.
With these limits it prevents that from happening.