Why use "lasagna" no till gardening?

I have already talked all about how wonderful compost is for your garden.  For some people, including myself, there is just not enoughroom in your yard to have enough compost piles to feed your wholegarden.  So why not just turn your whole garden into a compost pile?

Lasagna gardening or a no till garden does just that.  You build up your garden with the same layers of browns and greens that you would in acompost pile and just leave it there.  When done well, you can plant your garden right into these piles of compost with little further effort.  You don't need to till because the materials will compost and turn into a nice, soft bed for you to plant your garden in.  You don'tneed to fertilize because your garden is going to be built out of fertilizer.  You don't need to weed as much because the thick layers will block the weeds from growing where they would normally grow.  You don't need as much water because the organic composting materials hold much more water than standard garden soil and the water is there waiting for your plants to drink it up.  The layers you add on to the garden may even prevent some of the diseases and pest you have had in the past from being able to return to your garden for another year.  

I think this coming year I will dive right in and set up my garden this way.  Starting when I do my fall clean up.  The hope is that I walk out to my garden in the spring and throw the plants in the ground and they are already fed and watered for the majority of the summer.  That and I won't have to do much weeding.  We will see how this works out.