After 12 years of using my QL with a keyboard interface, there is no way that I am going back.
I think the true solution to the membrane issue is to get a keyboard interface. Then, if the keyboard dies, there are tons more available. Plus, you can get one to the layout and color that you like. I was able to find a black Acer keyboard for $5, 3 years ago. Plus, with the Keyboard-90 Interface I can use the CueCat bar code scanner that Radio Shack was giving away. I also have a habit of beating on a keyboard when not in the best of spirits. The keyboard I can sacrifice, the QL I can not. It's safely tucked under a small wooden table I've build to hold the monitor. Tim Swenson