I disagree. Tattoo's may be more accessible for the person buying in that more people are willing to take the plunge - but the number of artists isn't going to

I disagree. Tattoo's may be more accessible for the person buying in that more people are willing to take the plunge - but the number of artists isn't going to increase. And the time a tattoo takes to complete isn't going to decrease. Essentially demand will increase (quite significantly) and supply will remain the same. So prices will increase. It takes many years to become a good tattoo artist and even a small tattoo is quite a time consuming procedure. There's little that can be done on the supply side to increase it.