Probably so...if they're a big baseball fan. The franchise updates alone, add enough life to the game for it to be worth it, IMO.
There are numerous tweaks and improvements to the batter/pitcher confrontation, hit variety, fielding, etc. Pitchers now miss spots more, and the running game has been given some love as well. I just named numerous things improved without touching the lighting and other visual effects, presentation (including custom chants) etc.
This is more than just a retread. I think the issue for you here (Which you made apparent by an earlier response) is that the control scheme is the same, meaning how you play is essentially the same.
You're looking for a "new" gameplay experience rather than refining the current one. That's not going to happen often with a game that's not bad...and when it does, it usually leads to disaster. You might be better off with 2K9 if you're looking for constant change
So, for what you claim to be looking for (essentially controls, right?) YOU might be better off moving on and perhaps waiting until next year, as there are rumors floating that they may be adding some new control schemes into the mix. It may not be worth the money to
you right now.
I personally think you're mistaken in the sense that a game doesn't need to change it's "feel" from year to year in order to be worth a pick-up, but that's me. I just don't understand belaboring the point.
There was another thread about this. "Is it worth it" questions are subjective. You seem to be convinced it's not for you, yet you continue on trying to get people to convince you it seems.