As a Kindle owner, I can say that I bought it because the Kindle was a great eBook reader. I would not consider upgrading unless their Tablet was also very good, and not just good at being an electronic book reader, but a great tablet.

I got sucked into building new offices for my company a couple of years ago - what a pain in the ass. Everybody wants something different. Here are some of the things that turned out right. (It's shorter than the converse).

1. Sound insulation in the walls
2. Carpet on the floors -no wood concrete or tile.
3. Solid core rather than hollow core doors
4. Electrical outlets 6 inches above desk height.
5. No more than two people per office.
6. More ethernet jacks than people, same with phone.

Just remember everyone is going to be pissed off about something - as long as you are the least pissed off - you win.