I plan to buy the starter pack, but I'm not going to buy anything else because I consider it a bad deal. The Kegs are a much better deal than the Card packs in Hearthstone for example, but in the Czech Republic (where I'm from) I can buy half a kilo of chicken breasts for 3$. (I know it's a weird comparison, but I think meat prices is something that most people understand.) Since I can get 3-5 Kegs every day without paying anything, 2 kegs for the price of about two lunches seems excessive.
Also, since we don't use USD in the Czech Republic, there is also a fee for the conversion of currency, so it's actually a bit more than that.
I'd buy kegs regularly if the base ratio were one for 1$. (With better deals depending on how many you buy)
I love CDPR so I'm probably gonna buy kegs anyway, just to support CDPR. But I'd never buy the kegs to get cards.