Well I see it as you can't have your cake and eat it, too.
How many of you complain about Pinball manufacturer XYZ for being cheap, using cheap(er) materials, etc. And then come on here and say as a pinball buyer, you have to expect to fix some things right out of the box.
That's a dangerous path to go down - the more you "expect" a few things to be broken out of the box, the more they will be. If manufacturers are not held accountable, it will only get worse. Once they start spending money on technicians going out to redo solder joints, reconnect wires, make adjustments, etc - the better the quality control will be with the manufacturer process. Yes, every now and then something SMALL should happen (plastic piece becomes unglued on playfield, glue it back on, etc). But as far as the electronics - it should not happen. There are ways to ensure this.