Living in Blissful Ignorance
There are loads of threads on replica wheels on all these types of forums. At the end of the day you get what you pay for. I would be concerned having Chinese (where most are made) wheels that are supposedly stamped up on my car like you have said why pay all that money that put reps on. Also yes they are always heavier sometimes by mind boggling amounts, again lots of threads on wheel weights. Some OEMS are heavy too but at least they are made properly. Another way of looking at it is, would you put re mould tyres on? No, then why put cheap wheels on which the tyres are attached to and then only to the car by 5 small bolts??