Quoted from Charger500:
There is a certain member on this board that feels that pins should only be tastefully and minimally upgraded.
There are plenty of purists in pinball, and I get that. There is beauty and value to keeping something original and working/playing with it as it was originally designed. However, there are also those who like to customize to differentiate, cater to their own taste, and "improve" upon the original design. Both are valid approaches and up to the owner what they would like to do.
Not 100% the same, but just look at cars. Classic cars with matching serials and restored to look like they did when they came off the assembly line can be beautiful and extremely desirable & valuable. Conversely, upgrade an engine, custom interior, custom paint, new wheels, etc. on the right car, and you can also have a uniquely desirable and valuable vehicle as well. Like cars, it appears that pinball machines can reflect some of the creativeness and artistry of their owners, so I say to everyone do whatever you like to your machine even though some will love it, some will hate it, and many will just be indifferent.
Sure, trick things up too much or do something tacky, and you've just greatly limited your market for new buyers (kind of like the house I looked at one time that had electric blue counter tops in the kitchen - the owner loved them but couldn't figure out why his house had been on the marked for nearly two years without an offer). However, if you do things in such a way that you can revert back, or if you just don't care and plan on letting your beneficiaries deal with it after you are gone, then I say go for it.