I have no issues with COMC or SportLots. I have found they've allowed me to do the same with my PC! The combined shipping is really nice.
The issue is that Upper Deck's partnership w/COMC allows sellers to quickly transfer their cards over there and list (for a lot of sellers) at rock bottom prices with the main goal to increase sales with multiple low dollar amount sales. However, the main problem people have with this is that it makes a lot of ePack hits tank in value completely, even if they are brand new products.
I don't mind if, say, one product a year were "ePack Exclusive" products, because then it makes other breaks more realistic and (hopefully) worthwhile when broken in person and sold on a "normal" secondary market. But when every product has a ePack release and the flood goes straight to COMC, it just makes a lot of collectors wait for the ePack release to pickup cards at really low prices. Great for buyers, but bad for collectors who like to break and overall health of the hobby, in my opinion.
This is why some people don't like the ePack thing, among other reasons.
