I do feel bad for you, because money is tight for a lot of people and purchasing something that costs thousands of dollars is difficult for a majority of people. Besides a house or car, it might be the most expensive purchase for most people. If the machine was going to an operator, the imperfections you have wouldn't have been that big of a deal. Since most pinballs are going into homes, quality control needs to be adjusted to their new market.
I do agree about not buying NIB for simple reasons.
1.99% of all machines depreciate so you are getting a better price on something that is slightly used. The pulling it out of a box excitement doesn't equal the amount of money you save by getting HUO for me. You can literally save hundreds of dollars.
2. There is a possibility you might get to play it first at a convention, on route or at a friends house first. You might like the theme, but not how something plays. Try before you buy. There are a lot of games that I love the theme, but the game play kept it off my must have list.
3. You get to examine it person before you take it home. If there is some sort of defect or blemish, you get to decide if it is something you can live with and not be at the mercy of a warranty. No need to really haggle over a price, I'm sure the seller is aware of the defect and has factored it into the sale.
4. You get to see if the game is fully supported. When I got my XMLE NIB, I was on pins and needles waiting to see which direction the software would go. I was lucky and the software ended up being great, beyond what I hoped. Before that, I do remember the Christmas software update that broke it. I didn't know which direction they were going to end up with it, and for a little while I had a sick feeling in my stomach until the next update came out putting the game of track again.
5. Some machines come with cool mods that you also get at a fraction of the price for by buying used. Colordmd, topper, protectors, etc..., if you don't like them you might be able to negotiate them from the price by having it removed, or sell them after you purchase the machine for an even better bargain.