Der Rav: R’ Yisroel Belsky still allows it, although he differs from R’ Moshe in his reasoning. You can read more about it here:
http://www.oukosher.org/index.php/common/article/rav_moshe_ztls_heter_of_cholov_stam_revisited/
As for CY being available and its price, you’re wrong. CY milk costs a few dollars more per gallon, and it spoils much faster. I tried buying it a few times – the half gallon bottle usually spoils within 3 days. When I buy a gallon bottle from Shop Rite, it can last 2 weeks without spoiling.