Funny that you mention it, Frigo is Saputo brand and the mozz I use is my local food suppliers house brand that is also Saputo. Last I picked up a single loaf it was $2.50/lb. Saputo Gold is ~$2.80/lb there and after using both side by side, it's exactly the same from what I could tell. I could get Grande from another supplier but it is nearly 50% more and it's definitely not 50% better imo, plus they only sell by the case. I may switch once I get my food truck situated, but that's only to cut down prep by using their pre-shredded.
That's pretty interesting.
Winco, the low-dollar grocery i mostly patronize, has both Frigo and Galbani wmlm in small 1lb balls. I've used both of those products but at the time i was distracted by mastering new ovens and making some changes to my dough so i didn't really compare them or analyze how well they were working for me. Both of those products are near $3 iirc.
The high-end grocery, Harmon's, makes fresh mozz in-house, has a really impressive cheese selection, 2 or 3 brands of wet mozz, and does not sell a solid mass of wmlm anywhere in the store. They have 8oz bags of cache valley (local) shredded wmlm back with the lunchmeats and stuff. But they have half a dozen galbani products that aren't mozzarella.