Dreamer...I am in 100% agreement with you about the monotonous 2 bar style loops. A Drummer or Bass player does not repeat the same 2 bar riff for the complete length of a song.
I have owned previously 2 Korgs, an i3 & i30, these have mainly 8 to16 bar styles plus upto 6 chord type variations for each Var1, Var2, Var3 & Var4.
Some players state that styles can be over complicated, but all keyboards have a part mute facility if one wishes to simplify a style to suit a certain song.

Graham UK