@Hoth I don't have too much experience using a v-bit but that sounds like exactly what I was doing, using it mostly for carving text and a couple times for just carving a decorative edge. Made this watch box for my brother over the holidays, the sharp v shaped lines give it a very official look:
(more pictures: http://imgur.com/a/ib7GA
Your speculative daydreaming is very much encouraged! It's what helps us get features built, seriously.
I find the idea of "Layers" pretty confusing most of the time because it is a very thin metaphor that tends to mean a lot of different things. For example, Easel has "Layers" but that just refers to the ordering of shapes on the canvas, which you can change to intersect shapes in different ways. Those are literal drawing layers. But then I've also seen more metaphorical "layers" in v-carve and other software that refer to groups of objects that get cut out in different orders or with different properties.