The same for me.
Don't get me wrong, the Braumeister is a great bit of kit but it does have some limitations against a 3V setup.
I've always been a little disappointed with the boil from the 50L Brau, adequate, but far from the grunt I'd like to boil at.
Grain weight limitations is a big factor for me especially when I want to do an All Grain, Single Malt, for other brewing activities.
I've gone with the 30A control panel from The Electric Brewery & will be running 3 x 120L pots when I get round to it. The 30A panel is designed for 20G batches so that will allow me to do some other forms of brewing when I need 40L of 1.080. My boil kettle & mash Tun both have 5500w elements controlled output via the PID so that should get the boil rockin.