I was shocked to find a seller asking only 55 USD for two Sig 3s plus an extra battery on eBay a couple of months ago.
Needless to say, I snapped them right up since my original Sig 3's battery died some time ago. So now I have three fully functioning Sig 3s that all hold a good charge. Until recently I hadn't played around with anything older than CE 5
(except for my growing collection of Casio BE-300s
) for quite a while, but the Sig 3's form factor is so nearly perfect that it was hard to stay away.