I don't think I'd go with the Japanese-style futon pillow if I do decide to get a futon. I sleep quite....violently so when I wake up in the morning usually my pillows and blankets and whatever else are all scattered across my room like debree.
The makura (pillow) just looks too uncomfortable. I usually need at least two pillows to sleep well.
By the way no one has given me a price estimate yet. I don't even have any idea where I could buy a futon here in the US