Certainly it's worth the hassle...especially if you have someone to move your gear.
A lot of people "hear with their eyes" so the added dimension of you physically playing vibes as opposed to just using another preset on your keyboard will really add to your show.
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.