Nope, 8GB is plenty for me. Might consider it the next time I upgrade my CPU if I end up buying a CPU/motherboard/RAM package deal (since the main PC component site around here usually offers quite a few of those), but I can't really see it being too necessary even a few years from now.
Currently playing: Grim Dawn (PC), Rayman Origins (PC)
Yes, because why not? A little extra money for the assurance that ram will not be a bottleneck in the future.. makes sense to me.
Why not wait until it is actually a bottleneck, then buy more when it will most likely be cheaper? I always find this argument perplexing. Dog **** is cheap too, but that doesn't mean it's a good idea to buy as much as possible.