Dont like it. Sounds like a multiple time thing.
Bobbleheads in Fallout 3 was a multiple time thing. You find them all and you've upped every stat with 1 and every skill with 10. Also, it didn't cost you a nickle when you found them. Sure you have to find them first, but not hard when you have the wiki by your side.
In FNV we will probably pay 10,000-20,000 caps for one implant that will raise a stat with 1. Doesn't that seem a little more balanced? And most likely you can't get it twice.