It took me worryingly long in my career (like 20 years) to realise that the CTO doesn't care if the technology solutions work, or if they're cost effective. What he cares about is not being interrupted on the golf course.
If you have a system that is down for 12 hours 3 times a year, it's fine - as long as a lot of other companies are also down. If you have one that's down for 2 hours once every 3 years, but you're the only one affected, that's terrible. Not because you're "losing sales", but because you can't bemoan a common supplier, point to "it's a global problem", and then get taken for a nice apology lunch by the account manager when your bill goes up 10% next year.
If you have a system that is down for 12 hours 3 times a year, it's fine - as long as a lot of other companies are also down. If you have one that's down for 2 hours once every 3 years, but you're the only one affected, that's terrible. Not because you're "losing sales", but because you can't bemoan a common supplier, point to "it's a global problem", and then get taken for a nice apology lunch by the account manager when your bill goes up 10% next year.