You should! It's fun to watch it morph over time, add things, move 'em around, trim, as the plants change shape and size, just like a full-scale garden. It can be realistic or whimsical, desert or more overgrown, minimal with a single decoration or all junked-up.
You can buy things, make things, steal things from Barbie & Lego. Popsicle stick picnic table & benches lasted about 2 yrs. Clay mushrooms, not quite as long. I don't have any actual fairies but there's a couple of gnomes & a car junkyard, some dinosaurs & other animals, houses, campers, fun stuff.
There are tons of pics in the mini gardening forum on here.