About 1 out of every three beers that I brew has had an OG of over 1.100, I'll try to answer that.
With Big Beers, the issue becomes what will your FG be. FG determines a lot of the character of the beer as does the grain bill/hops, yeast used etc, but the difference with a big beers is gravity so I'll limit my discussio to that (mostly).
With standard attenuation, which I will define as 75%, a 1.080 beer will finish at 1.020, generally not bad with big beers, a 1.100 OG beer will be 1.025, a 1.120 OG a 1.030, and a 1.140 og 1.035.
with a 1.080 OG beer as long as you find a FG of around 1.020 to be what you are looking for a larger starter should be all that you need.
For some other considerations when you go to brew that monster check this out.