Hey John, Roland has a new line of stage pianos like this
Quote:

The Supreme Piano for Stage Performance
Step onstage and step up to the world’s most impressive stage pianos, with amazing pianos and EPs onboard, plus audio-play and master control features.

The RD-300GX is powered by Roland’s latest sound engine for incredible sound quality.
Stunning 88-key stereo multi-sampled piano sounds
Highly portable stage piano, equipped with PHA alpha II 88-key weighted keyboard which provides the excellent touch.
Audio playback of WAV, AIFF, and MP3 files via USB memory; easy onstage control with Audio Key feature
Piano Designer function for creating the perfect custom instruments
Multiple zones for master-control functionality

Perfect Piano
The RD-300GX features two sets of 88-key stereo multisampled pianos sounds from the popular RD-700SX. In addition to their super-expressive onboard piano sound-sets, other essential instruments are built into these new pianos, including EPs. You can even customize and save your sounds for instant recall.

Perfect Touch
The RD-300GX features an excellent PHA alpha II weighted keyboard, which simulates a real grand piano by providing a heavier touch in the lower octaves that gets increasingly lighter in the upper range. This keyboard has many of the same design elements as Roland’s acclaimed PHA II keyboard, but its keyboard-action mechanism is much more compact and lightweight.

USB Audio Enhancement
Play audio through the RD-300GX directly from a USB memory key. Flexible file compatibility enables playback of Standard MIDI Files, WAV, AIFF and MP3s. The "Audio Key" feature lets you use the bottom 15 keys for controlling start song, song length, etc. In addition, you can connect directly to a PC via USB and tap into Cakewalk SONAR LE software, included in every RD-300GX package.

Custom Shop
For those who like to get inside an instrument and customize its sounds, the RD-300GX’s Piano Designer feature is your key to unlocking and personalizing the sound-set, down to the smallest details such as Hammer Noise, Damper Resonance, Duplex Scale, and more.

High-Quality Effects
For subtle sweetening or complete transformation, the RD-300GX offers a wide lineup of 78 multi-effect types to choose from, plus independent effects such as reverb, 2-band digital EQ, and Sound Control. Add sparkle to your grand piano sound, deep-fry an electric piano, add depth and spatial movement to strings ― the choices are vast.

Lightweight, Compact
It has an impressive, heavy-duty body (with sophisticated black brushed metal finish) but the RD-300GX is actually one of the lightest 88-note piano in its class. It’s ultra easy to transport at about 36 pounds (16.4 kg), — yet built tough enough for the rigors of the road.

Included:
Owner's Manual,
Audio Key Utility 2 Quick Guide,
CD-ROM (Audio Key Utility 2, SONAR LE),
Damper Pedal,
Power Cord



I think the is around $1500-$1700.
Our church has the earlier sx model and I wish we had some of the extra USB features this on has. It might be worth a trip to a local Roland dealer to check them out.
Hope this helps Wyndham