Quote from Mozared: Go
.. LotV, with 22 missions for 40 bucks, is going at about 50 cents per mission. The Nova packs, at 8 dollar per 3 missions, are going at 2.6 bucks per misson.
I'm sorry I had to reply to this, but you are dividing it the wrong way, its 40/22 = 1.81 dollars per mission. Compared to the Nova full packs, which is 15 bucks for 9 misison, which is $1.66 per mission, cheaper than LoTV (than again, had a multiplayer mode, 3 co-op commanders). Of course, bigger pack purchase should provide more value obviously. I'm sure Blizz had done the market research on this.
For my opinion, I'm perfectly fine with they charging for heroes, as long as the maps are free (who would be stupid enough to charge for maps ? Oh right, the marketplace arcade, their next plan). Heroes hold sentimental reasons for players who loved them in the campaign. Karax is kinda terrible at first, but as I leveled him, he grows on me as I understood his playstyle better. He's no broken omnislash Vorazun, but he's perfectly capable of beating Brutal, and that's fine for me or anyone who loved his playstyle. We played the mode for fun, not to faceroll Brutal 250 times in a row and call it quit.
For future heroes, they should do a better job marketing them, showing the player what their playstyle are designed to be. Ability description and a 10s videos can't do that.
I was just hoping their next Terran commander will be free for WoL owner and similarly for HotS but I guess it probably won't happen. LoTV edition is the ultimate version they wanted to push.