Thing is, few titles are going to attract 50% of the market. Out of a couple of million consoles, you wouldn't be looking at much by way of average sales for many titles. Sure, a few top titles will do well. BD was funded by MS though, who were willing to risk it. A 3rd party might be more reserved and unwilling to invest. Isn't Eternal Sonata out in Japan but not doing amazingly well, or am I just making that up? I think 3rd parties need to see good enough sales of moderate titles to feel comfortable. Although talk from these Japanese companies is casting the net wider, aiming to reach more in the international markets. Rather than look for good local sales, good international sales might be enough.