I'm still not sure what this has to do with marketing, but I enjoyed the ideas presented on building prototypes. More on that, please. It took me right back to my days soldering transitors into my Heathkit FM tuner (which I still have somewhere.)
Tom - The article really isn't about marketing - that's just my day job. Although, I happen to consider a solid technical background and understanding of what customers do to be vital parts of marketing. I just run across a lot of different components, boards and levels of complexity. I see a lot of what's done right and a lot of what's done wrong. Hopefully now and then I can save a few people some time, frustration and money by passing some of this knowledge along.
I still find wire-wrap useful on occasion. You can get a lot of excellent demo/dev boards with 0.1" pin pitch (or Euro versions with 2,54 mm pitch :-), pop them onto a perf board, and wire-wrap them together. It's a lot easier IMO than point-to-point soldering, and you can easily modify the connections and reuse the parts. I used wireless breadboards when I was a kid, but I find it too easy to tear wires out accidentally. Plus they don't have enough contact points -- it's not like the 24-28 gas-tight connections you get with wire-wrap.
I still have a small hand wire wrap tool & used it 3 weeks a go, I also use a modiffied ball point pen cartridge as a"mini" wrap tool. Steve Ciarcia wrote an article about it in an early BYTE, and I was bite.