So in spite of my better judgement to wait, I bought Yakuza 4 today. I already love it.
NOTE: Its $39.99 right now on BestBuy.com. Kmart in-store gives you a free copy of Yakuza 3 (and a $10 store credit thing if you have their "rewards" thingy). Pick whichever is the better deal for you.
I've only played for an hour or two, but the game is great fun. The new character fights differently, which is fun after the 60-some hours or whatever I played of the last game. There are a total of 4 guys you will play as this time so that should keep the fights interesting.
Granted I haven't played a lot so theres not a lot for me to comment on. I went in the mahjong parlor and yes indeed you can play! When you go in a place to eat something (in my case, the burger join) there was an actual animation of you eating. I know, totally minor thing but its better than Y3s fade to black and then fade back. All the hostess clubs are back so now that section of town wont seem quite so dead, and the MEB shop thing where you get information about the different clubs and girls actually has a use now!
My favorite parts so far are probably the minigames. First, the gambling hall has all the japanese gambling games in one place this time. Before you had to fly between cities to play one game or the other, but since you apparently don't visit Okinawa in this game they put em all under the same roof. And Baccarat is back!
The other new thing is the hot spring. It seems like a place you'll take girls on dates to, but you can go in and relax and play the new table tennis game. I havent figured out the finer points of playing but its fun. It has a very Japanese feature, too. I noticed when it showed the games controls there was a button labeled "Stare". Huh? How does that fit into table tennis? Well...pressing the button zooms in on your opponents physics enabled breasts and goes all slo-mo. I have no idea if this is of any actual use in the game or the dating or if its just pervy for its own sake, since its hard to make the next shot if you do it.
Oh, and one more thing! In the series there are coin lockers and all their keys are spread around the city. Find the key, you can open a locker and get an item. In previous games you had to be an eagle eye or simply use a guide to find them all. This game actually has a locker key radar that will beep when a key is close. I love it.