Signifigant implies 300% or more ROI. Used to be a time not to slong ago whne 100% was a great, and viable target for any business. Now just about any medium or large corporation sees anything less than 300% as unacceptable. A minimum of 300% is pretty much a corporate standard these days in any industry. Where or why they decided that number is beyond me. Whatever the number, it all comes down to excessive greed.
Hell, look at Activision just a few short weeks ago publically stating that any IP they couldn't make a signifigant annual return on is something they would drop or simply not pursue. So even an unfinished game that has poor sales - most likely due to it being rushed out the door by the beancounters in the first place...can you say "irony" - is something that will stay unfinished and unpatched. I for one sincerely hope this will occur. Why? Because this will elad to class-action suits against these companies, and we'll finally get an acceptable, enforceable standard for software releases and/or any ensuing support. That or it'll put these assholes out of business once and for all, and we'll move back to a smaller, more dynamic model.