It all may sound frustrating but if you actually target link sources that have the right amount of traffic (and most importantly the audience that is interested in your niche) it doesn't really matter that the seed links are nofollowed.
Because on the heavily-trafficked sites, people will come and read your stuff and republish it on their sites. And hopefully some of the links will not carry the nofollow attribute.
Link seeding can work really well if you find the right sites to publish your seed on.
On the other hand, if you're still trying to build the links with the pre-penguin frame of mind (or even worse if your client/boss has the pre-penguin frame of mind) please accept my condolences. Don't pull out all your hair, please!