For me, I'd gladly pay for a DLC that added the things that don't work on old gen consoles, and even things that fail on new gen consoles. It would be optional and, not affect the story. And the bottom line is that, as a KBM PC player, I have to adapt to a console UI and, I accept that but, I also think that alone is reason enough to allow PC players the game Bioware initially wanted to give us. Another 40.00 USD to have it all, sure, no problem - I'm sure it's well worth it.
Old gen consoles and, new gen if need be, could be offered different but comparable DLC for the same price. All for the Single Player campaign only of course, since multi player does need to be identical across all platforms.
Perhaps consoles get single bosses with great loot that attack fortresses while PC gets armies that do the same? Same loot, same effect but, PC gets lots of little enemies and consoles get one big one instead. (Just and idea and an example of how I think it could work.)
I am not as forgiving as you. $40 more added to the $70 already? Heck no.
If Bioware initially wanted to give us the PC game they advertised then they should have issued a statement back in November saying PC is not ready please be patient and will get it to you by Jan or whatever.
When a manufacturer releases a product that is broken it is up to the manufacturer to fix it free of charge not charge the customer more money to fix it. That is not good customer relations.
If the game wasn't broken on release different story and I'd probably buy a DLC for $20 of whatever they put out.
A DLC that adds to the game like Legacy, Return to Ostagar, Lair of the Shadow Broker - Heck yes, I'd buy in a second. But those games when I bought them were not broken.