Seriously though, what sold me was the Ship battles. Out of all the strategic battles in all the Suikodens, the ship battles were the most fun, intense and AWESOME MUSIC. Well, for me a least it was.
Really? It was a couple of years ago now so I may be wrong, but I kind of remembered the ship battles as being really easy and underwhelming... ah, well. Agree with you about the music. And still enjoyed them more than V's real-time war battles.
Actually, I enjoyed quite a lot of IV more than V. Somehow. Because V really was just clearly better!
btw, if anyone here's actually playing Tierkreis but me and Ralph (finished yet? I just did, earlier today), the reward for getting all 108 stars is seriously not worth it. Don't worry if you miss some stars, and definitely don't restart because of it.