For me there are a couple of reasons:
1. It is more light weight, compact and easy to transport. Great for small gigs where I don't need all the bells and whistles.
2. It has built in speakers. Great for practicing. I don't need to hook it up to a PA. And I can take it to a friends house.
I know that some have played real small gigs, like nursing homes with just the built in speakers.
I think from reading posts in the past this is true for several folks.
Eric
_________________________
Genos, PSR-S970, TC Helicon VoiceLive3, Mackie 802-VLZ3 Mixer, 2 Bose L1 Pro16, Electro-Voice ZXA1 Subwoofer