Same situation as you, however... I use the Magic Mouse 2 instead of the Magic Trackpad 2. I have a stand/dock and keyboard that I use with my iPP for some time now, I only bought the Magic Mouse 2 recently. And I'm perfectly fine with the setup I have now. I'm fully aware of how nice the MK is, but I don't think it's worth it for me simply replace the setup I currently have.
And my stand/dock is much more versatile to the MK. It's really not much an advantage for me to go with a MK, but I do have the option to use the Magic Trackpad 2 that I use with my iMac, but the disconnecting to use it with the iPP seemed a little too much... decided it was just better to buy a mouse strictly for the iPP.