When it is literally life or death that depends on a computer, Sun was the only choice. I can't remember who wrote this, and I paraphrase, but completely agree. Sad that nobody has filled that leadership role in the market. We trusted Sun with a $250M industrial process running on a shitty Ultra-10 back when that was real money and they didn't let us down. I had a Sparc 10 in the filthy production office that foremen used. Every spring I would shut it down and blow out the dirt using a 100 psi air compressor in the truck shop. After "maintenance" it was ready for another year of uptime.