You really don't understand pinball at all. You should indeed skip this and play something else.
About the salesmodel, sure it's confusing but they need a platform to showcase all tables. Should they release all the tables as separate games?
I enjoy pinball
as a fun game to play while I'm at round tables.
And with the sales model, if your arguing that pinball tables can cost $3 for the amount of "value" they have, then how come I can pick up Cave Story for FREE or get MegaMan X Street Fighter for FREE. And those dont require you to spend extra money. they have actual gameplay too. AAALLLSO if you want to argue with games you have to pay for, how come I can pick up HL2 for $2.50 on some steam sales? That game lasts me 12 hours. I also can enjoy a story and uniqe gameplay. I play my games for story and gameplay. Do you know what zen pinball 2 has? neither of those last time I checked.