Plastic Razors Are Expensive

I've been using the trak 2 cartridge stuff forever it seems and a Panasonic Wet/Dry rechargeable electric. I do like the Panasonic, however I just replaced the battery in it, a 1000 mah Ni-cad single, basically AA size, with a post on each end for 18 bucks. A standard tip is only 2.50 at Jameco.