It's all about your business model, given that in the past you as a business owner bet on the right platform to run, which obviously was and is some PC UNIX i386 variant in the case of Unix/Linux. SCO OpenServer has been around since the days of the AT 80286 PC's. Today when looking for the latest you type in www.sco.com and arrive at Xinuos which no one knows. However your old SCO UNIX keys seem still to work or not ... If however you can get SCO OS5 to run on the latest hot x86_64 iron available, making your old applications available at todays cpu and disk speeds, you win. If applications which run on ScoOS5 follow the same business model no one will complain.