But the "seemingly" infinite array has other advantages. You get the -3 dB per doubling distance over a very wide frequency range. Meaning it actually has line array behaviour over that wide area. I'm sure we'll see something about that soon on a different thread.
As mentioned above, that data is up right now:
(Keep in mind this is all raw line array response, no EQ is used)
I'm grateful to ra7 to show this data, which I knew to be true. It's always good to see it in clear data though to prove it. My room won't let me prove it in this clear cut way. I'd run out of space and stumble over the furniture.