Italian food is more favorite in US ???

I was really hungry that day after returned back from training center, so we decided to go for a dinner to the closest restaurant around the Hotel in Schaumburg. Take a walk around 100 meter, cross the road and we reach a Italian restaurant. I guess, they seems to serve a very delicious food because all around the waiting area, we saw many people waiting. We talked to a person in the front, wanna take a eat there, then he said , could you wait for 25 minutes ?. I suddenly said, what ???, 25 minutes...Is that so long and he said sorry. So we finally decided to go to opposite restaurant. I ordered my favorite salmon grill with a mushroom soup, the taste more like Italian or France with a triangle plate quite antic, but it is delicious. Just great, I think.But along our talks, we are curious how come it takes so long to wait for that Italian restaurant. So, next day we crossed that restaurant again, wow...Many people queue. I thought, if the food is very delicious, people will be queue for it, at least my experience here in Singapore. Then, the last day we crossed again that restaurant, long queue again...And again ??. Does Italian restaurant has a very delicious food in US ? I am curious until today.