I am just a college student suffering from RSI. Tried to use regular keyboards, rubber dome and mechanical caused me too much grief. After 10 years, I gave up and switched to a PS2 MS ergo that I got at the thrift store for $3. That bought me about a year. I switched to Dvorak (took me 6 weeks to adjust) and that bought me about 2 years. As reports got longer, I observed how I was mistyping things and realized that staggered columns were an issue for me. A bit of searching found me the kinesis and I found one on craigslist for cheap. The rest is history.