If you only got tapped once, and never wear a gi, you are either very, very good, or it was a group of guys who are pretty new. This isnt a knock, but that damn collar is a liability, and guys who train a good bit with a gi (purple and above) know alot of ways to make you pay for letting them get a hold of it.
That said, I train with both, probably alot more no gi (5 or so times/week no gi, 2-3 a week with a gi) overall (used to hardly wear it at all) and the guy who said With it, offense goes up, defense goes down and without it vice versa, is dead on. I see value in training with it, and without. Also, keep in mind, every T shirt is a gi......for one choke.
That said, I train with both, probably alot more no gi (5 or so times/week no gi, 2-3 a week with a gi) overall (used to hardly wear it at all) and the guy who said With it, offense goes up, defense goes down and without it vice versa, is dead on. I see value in training with it, and without. Also, keep in mind, every T shirt is a gi......for one choke.