There is a great joy at stopping at the bottom of a slope, looking up at my tracks and savoring the feeling until my next powder run. Fat skis are easier to ski than the traditional slalom or giant slalom ski. They have extra surface area which keeps you higher in the powder. It is nearly impossible to sink below knee-deep level, where a lot of those falls take place. You might not get those face shots, but you won't have to work so hard either.
Fat skis come in a variety of widths, side cuts, and stiffness.
Some are especially well suited for the experienced powder skier and some for the more intermediate to advanced skier. You should demo before you buy to get the ski that's right for your skiing style. Of course you can enjoy powder days on traditional skis and experts have been doing that for years. Fat skis have made the off-piste accessible to more recreational skiers. Weight Skis equally.