No, restoration is more rewarding than simply buying a new toy.
The other main principle is that a remake is never the same design, as always something is changed as per manufacturer "preference", present it as more reliable, or lucrative to new buyers. Reliability is not endemic based on technology, it is based on care and maintenance. King of Diamonds was an example of this technique, based on changes. This it is not same as a reproduction game, which there are only a few true examples in pinball history unless exclusively made from spare parts.
A good example for a bad remake would be Paragon, as there is nothing nostalgic about the title if it used modern technology, displays, flashy sounds, music, or even a LCD which would cut out part of the backglass image. Upgrades is not what makes a title, the basic design was the hallmark.