Dakimakura's are a bit too weird for me, but i wouldnt be ashamed of having friends with em. Im not a poster user either. Both of those things shouldnt be forgotten with age though imo. I just cant agree with marrying an inanimate object though.
Though i think it would be cool to live with an artificially intelligent anime hologram thing if one will ever exist (longterm i mean). I think that would be considered creepier by most, but i love artificial intelligence, and would love to be a "friend" to some if and when they ever evolve to that point. I dont even mean emotions... Just simulated social behaviour. Sorry about 2 standard deviations from the topic =p.