Ask Patch Foundry: 88, 76, or 73 key Nord Stage Model?

I recently got this email:

Hi Eric,

My wife and I play music and lead worship together and I’ve wanted to upgrade her piano game for some time. Do you have any thoughts on the full 88-key or is the 76 an okay option? We play around a bit so I could see advantage of having one less octave to carry, but was curious your thoughts on that as someone who plays a bunch.

Thanks, Clark