So, what is different in these other scales?

Except that the pianos will have different layouts for their keys, there will be certain differences:

• intervals can sound sweeter or harsher, depending on the characteristics of the scale
• intervals can be perfectly tuned, or only approximately in tune
• there can be more or less available chords
• transposing and modulation can become more or less difficult
• and of course, different scales lend themselves to different purposes
• instruments will be slightly different

However, there also is an opposite effect:

• the available instruments will affect what kind of scales are probable to evolve
• the kind of music will affect what kind of scales are probable to evolve