Hehehe, those dolly's are cute, much nicer than the normal typical blow up dolls. Before you start thinking bad things about me, I had to do hair/makeup for a film in a porn shop. While they were shooting we had a good laugh. Blow up pigs, and sheep.
I have heard of Japanese guys doing much worse than sleeping with a doll. Theres no harm in it, its definately not hurting anyone. You cant really call it cheating. Do you think that the dolly's act as escorts too? They could dress them up in a sporty little onepiece jumpsuity type thing, and pop her in some roller blades, take her to the park, eat icecream together before hitting the clubs.
OH dear, my imagination has just gone crazy. Humble apologies.