We started taking our DGK's with us for much of the summer, spring break and several weekends a year about 6 or 7 years ago. Things that required recharging started off with their DS's, and the DW's cell phone.
Now there are four cell phones, cameras, iPods, a net book and whatever else 13 and 14 year olds must have with them and turned on at all times. When required the netbook is charged using a MSW inverter made in 1989. I use it for the HDMI Splitter too.
The TV's and the BluRay player are Insignia Brand from Best Buy and all had wall bricks but are plugged in directly to 12VDC outlets.
So far we have not had any problems with running things the way we do. I do carry the bricks but have never used them. I am going to install an on/off switch for the TV's to eliminate plugging in and unplugging while in storage. Just flip a switch and they're off.
I installed a branch circuit from the batteries that goes to the 12 volt outlets, we have 7, and they run through a separate fuse panel mounted behind the engine hatch doors on the front of the rig.