No benefits of a frontend? Wow you must be new.. Try choosing searching through songs in Winamp on a touchscreen, or anything for that matter via no frontend on a touchscreen.. It blows dude..
Frontends put everything in one access place.. You don't have to try and launch programs via TINY icons on a desktop..
Now, if your not using a touchscreen it would be a different story but still a pain to not use one IMO.