Yes, there are lighter stoves, but they're around twice the price. Though they may be worth it for some outings, most are less durable, and many lack the Spitfire's piezoelectric ignition and adjustability from simmer to boil. For most camping and backpacking trips, the Spitfire offers excellent performance as well as the best price. Priced Right Mountaineers know that lightweight, no-frills packs are often the best ones. The Extreme does away with bulky side pockets and weighty compartments.
More heft is shed through the use of a lightweight foam suspension system.
Until recently, it also cost more. But smarter manufacturing has lowered prices. Bulkier, more expensive bags are worthwhile for frigid nights, but if you don't need 'em, don't buy 'em. There's no wind-blocking membrane in this fleece, and that's a good thing. In severe conditions, under a waterproof shell, plain fleece works better.