If your double does that for you then you obviously don't have large downhills in your area (or simply don't care to go fast down them ). I spin out of my big ring on my double even though when I'm cruising I'm usually on the upper half of it (larger cogs.)

Also, with a double you run into THIS problem.

My bike came with a 50 tooth big ring. I spin out of it even on moderate downhills. Therefore I want a bigger big ring. BUT, when I'm cruising on flat ground, I'm usually in the 3rd or 4th biggest cog. If I get a bigger big ring, I'd be in the 2nd or 3rd, definitely cross chaining. There's no good "middle ground."

I LIKE having a triple. And that's the reason why I'll continue using them. (When I have a choice and didn't buy the bike on sale, like the aforementioned bike.)