i bought my WASDKeyboards custom for 150 dollars and im pretty sure its better than that one what makes these so special besides age
http://lmgtfy.com/?q=Why+is+the+IBM+model+M+so+great.
You found it in your basement?Watch one of your family member do some exposition stuff and say it belonged to your great uncle that died to spooky causes and now the keyboard is haunted.
unicomp still makes the keyboardhttp://www.pckeyboard.com/page/product/IBMxxxxthere are also similar ones on there that cost less and seem about the same
ew heavy keys :(