I'll admit, I liked Sbarro. Also enjoyed Blimpie Subs and Lenny's Subs. I don't think any of them are extinct officially, but they may as well be.
If places like Burger King and Checkers all disappeared tomorrow, I wouldn't care. Long John Silver's and Captain D's... can't remember the last time I ate at either. They were not good in the 80'-90's, I can't imagine what they are like now.
For a sit down restaurant, I don't get the appeal of Buffalo Wild Wings. You're paying high prices for what's basically elementary school cafeteria level food... and most any place that has a BWW, has at least one other restaurant nearby with as many TV's and as good of a beer selection if that's why you're there. I think Chuy's is still hanging on, but I'm not sure how. I do miss places like Quincey's and Western Sizzlin, but in today's world, both places would be terrible, so it's best that they're in the past and cab be remembered fondly. Also,m has a job many years ago working overnight, and several of us would order Steak-Out once a week on our final shifts... there's still a few that remain, including the one we'd order from (I'd always get the sirloin tips), but I figure they'll all be gone soon...