Honestly if you're going to buy anything, why not just buy the original, and buy American? I know Unicomp, which has their plant just down the street, doesn't advertise much, but I think you really can't beat the IBM Model M keyboards (especially not at the price point):
http://www.pckeyboard.com/
A lot of the mechanical keyboards on the market have Cherry switches inside. While the IBM Model M is timeless, Cherry has been around forever as well (founded in the 1950s, started making keyboards in 1967) and their MX switches are about the same age as the IBM Model M (early-mid 80s). The age/tried-and-true/original argument has little weight here.
edit: also what falcolas said about being able to choose your switch, Cherry has half a dozen ones with different tactile and sound profiles [1] [2]
Because the Model M has one feedback type, and one noise level. Between the various Cherry and Topre switches, you get a lot more customization options.
And for an interface device I spend a dozen or so hours a day on, it's worth the effort to make it match your needs.
Agreed with the other two respondents at this time. While I loved the Selectric keyboard, the Model M, while certainly a lot better than many others of that era, wasn't great. I much prefer Cherry Blue switches, to which I add these to soften their bottoming out: http://www.amazon.com/gp/product/B00AZQ3966/
Agreed. My biggest regret is that it is so expensive to build an ergodox, even if you want to do the soldering yourself. Otherwise, I'd build a few for my keyboard-conscious friends.
To put my claim into perspective, the cheapest way to get an Ergodox in the US is at Massdrop for 200$ + shipping + assembly. If you live outside the US and pay import taxes on that, it will cost you around 350$. There are people in EU who try to sell ergodox parts themselves (falbatech.pl) but the price will not get down by much.
The people I've spoken to recommend both cutting the plastic case yourself (or using no case at all, some have done that) and ripping the Cherry MX keys from older, cheaper keyboards, but that is currently beyond my possible time investment.
It is very expensive. I built mine from the ErgoDox kit on massdrop which saves a bit of money, but it's still expensive.
But in comparison to other ergonomically-focused keyboards, it's actually on the cheap side. I justified the purchase as an investment in my long-term health, and I think when looking at ergo keyboards you sort of have to look at it that way - you're paying for comfort, yes, but for comfort that will prevent injury.
I have an irrational love for my ibm model m's. They are perfect. The phrase, "From my cold, dead hands!" comes to mind. If I had kids, it's what I'd pass down. yeah, I know...
Which offers lower prices and usually better selection, e.g. more than the Cherry Brown and Clear switches that the "Code" keyboards appear to come in.
Which manufacturer they offer at any given time varies, I've gotten both Filco and Leopold from them, and now they're offering another company's, which for all I know isn't as good.