You can try to tackle this from a financial, support, or business perspective, but that's not the direction I'd go...
Red Hat funds a large chunk of the GNU/Linux development which you are benefiting from. They make a good product for a reasonable price (enterprise wise), and their competition is good for the software ecosystem. I want to see more companies follow their business model and promote Free Software. Given all that, personally, I think there is some, however small, level of moral obligation to support them if you have the resources. It's just the right thing to do - I think you feel it, and I know I feel it.
Tell your boss that you want to work for a moral company, and that includes things like not exploiting employees, recycling and green initiatives, and things like buying at least one copy of Red Hat Enterprise Linux if that's what you are using on your servers.
When he calls you a "linux hippy", just be like "yeah I'm a hippy, just like all the other hippies that got together, did what most people scoffed at, and created this software from scratch, for free, which you now want to run your whole enterprise on".
- - Intertwining running apps with their launchers may be OK for newbs, but it sucks hard for the rest of us.
- - Basic functions like switching apps or workspaces take twice as many motions and twice as many clicks as before.
- - I have 5 desktops each with a specific purpose, with Dynamic Workspaces all my apps/desktops get shifted around into a messy pile.
- - I used my taskbar as an reorderable ordered list of things needing my attention, with Activities Overview I can't.
- - If I'm browsing and want to hide a downloaded PDF window until a little later, I can't without minimize.
- - How is having a big pile of icons on one screen better than an organized menu? Oh wait, it's NOT!
After half an hour with the Gnome 3 Shell I *really* want my old desktop back
My initial impression is that all fundamental tasks, like launching apps, switching apps, switching desktops, etc, all take far more motions and/or clicks to accomplish than before. It appears as though all my app launchers have been pulled from their organized menus and dumped in a big messy pile I have to search through. And it doesn't look like I can customize the layout like I could before.
Maybe it will grow on me, maybe I will learn and adapt (I'm trying to give the Gnome dev's the benefit of the doubt here), but as it stands after my initial half an hour, I *hate* it, and I don't think I'm going to be nearly alone?