For me, the most important thing about primal was learning the difference between factory meats and pastured meats. I already ate more seafood than a lot of people, so I really didn't take a hit there. Factory eggs have been increasing in price lately, so when I first started eating at least organic/cage free eggs, I was paying twice what factory eggs cost; now it's only 50% more.
Yes, it's expensive to transition from CAFO to pastured, but to me it was worth it. Chicken and pork, which used to be some of the cheapest source of protein for me are the two meats with the biggest price hike, so I just eat less of them.
Pastured half'n'half is twice as expensive as nondairy creamer, and 25% more expensive than factory. But this one is important to me as I don't want to have hormones or pus in my milk. Butter went up about 60%, but a pound of butter lasts a long time, so no big.
I kicked and screamed (mentally) about how much I was paying for food, and then one day a switch just flipped. I no longer saw non-factory raised food as expensive, it's just that factory food is so cheap.
I don't have a lot of money, but I live a pretty simple life. A 20 year old car (that I love), so my insurance is low. No paying for TV - I only watch what streams for free online (that's $90/month back in my pocket). I don't have a cell phone because I don't need one. Actually, I'm even thinking about ditching the land line and just doing free google phone. And since mostly giving up wheat, I probably save about $100/month in pizza delivery.
However, if I were a student, or had a big family, or just flat out couldn't afford it, I'd make due. I'd probably switch more toward fish than mammals. But as long as I have a choice, I'm going to eat animals that aren't treated like garbage and aren't shot up with hormones. It's good for my health.
"Right is right, even if no one is doing it; wrong is wrong, even if everyone is doing it." - St. Augustine