Its a hobby, my friend. Nothing more, nothing less. The hunt for the watches and parts makes it interesting. That's why this is such an addictive (and expensive) hobby.
Most of us here take this as a challenge where we try to get the reps to the best that we can at a fraction of the cost of the genuine article. I maintain a ceiling at 1/4 or 1/3 of the cost of the genuine. That's where the challenge lies. Because at the end of the day, a rep will always be a rep and will not have a value beyond the forums.
This is also my way of sending a "F U C K Y O U" to the ridiculously priced watches now.
Have I spent too much modding my reps? Yes.
Are they more valuable than my gens? No.
Do my reps have more sentimental value than my gens? Yes, weird isn't it.