You can get a Ti Wood Burning stove from Tato gear for about $55, fold flat and weights about 5 ounces http://www.outdoortrailgear.com/stor...08&id=23387848. Lot of other choices on wood stoves.
You can also get clones of most of the big brand name canister stoves on Ebay and many for about $10 with shipping. Many even come with built in igniter.
http://www.ebay.com/itm/Ultralight-M...item51a506d6b6. ( I have bought 4 variations on EBay and they all work and when I have tested them under controlled conditions against their brand named version I find the time to boil water to be just a few seconds longer ( 10 to 20 seconds )