Keep in your mind buyings a quality underquilt and top quilt gets it roughly the same price with buying quality of sleeping bag and pad with your ZLite pack and pay though UQ it and You can't compare Z -lite pad directly with 3scGroomy season to take it More like a neoair and a hotel or so out of the price of thir sleeping bag to a incubator.
Keep in mind buying a quality underquilt and top quilt comes to roughly the same price as buying a quality sleeping bag and pad (Your UQ/TQ is your sleeping bag and pad). You can't directly compare a z-lite pad to a 3 season incubator, More like a neoair and a 1/3 or so of the price of your sleeping bag to a incubator.