I bought a BJC80 on Ebay five or so years ago. I think I paid about £40. It works very well with my laptop using IR. I only put a black cartridge in it (being a cheapskate). I got a box of ten cartridges for about a tenner.
It's been on several US trips and is invaluable for printing out plogs after I've done all the planning and plotting. It needs its jets cleaned out once in a while, but nowhere near as often as the Epson I used to use.
All in all, an excellent little printer. Not having to cart around a lead is in its favour.