People were saying the same thing about GFWL... Don't you think it's more likely for SecuROM to go out of business and shut down their servers before Steam does (although it would probably be easier to patch Securom out than GFWL)?
Isn't SecuROM by Sony? Doesn't that alone make it easily just as immortal as Steam/Valve, and then some?
And people who always go "do you plan on installing this game on xx computers" seem to forget that these activation limit DRMs don't always work as intended, sometimes identifying the same PC as different one (and leaving you unable to go back and revoke your previous activation). Plus, "I'm sure Capcom will grant you more installations", how can you be sure? Yeah, maybe they will, if I go completely out of my way and be extra persistant with their support... or maybe not.
Yeah well, all that applies the same to Steam/Valve, remembering the common arguments:
"Come on, it is not like Valve is going out of business any time soon."
"Gabe Newell promised that he will personally patch out all Steam games DRM-free, if they ever do."
"If all else fails, you can always just dowload a crack from torrent sites for your Steam games, instantly making them DRM-free. Easy!".
"And these are only games after all. So what if you can't sometime in the future play them anymore? You wouldn't be able to do that if WWIII started, either. I have more important things to fret about in my life than some stupid games."
Sounds like double-standards to me, if those arguments work for Valve/Steam, but not Capcom/Sony/SecuROM.