is upgrading to 2010 worth it?
Erm, it depends really. You've got to think about how much you enjoy the game and how much time you put into it. I'm a student with a half-empty course, no job, and extensive holidays - I get a lot of time to just bum around, and playing TEW is one of the ways I enjoy doing this. With the hours of enjoyment I get out of it it's paid for itself.
I don't know that there's any major
changes which make it a totally different game to play, but there's a shedload of smaller ones which I reckon make it a far more enjoyable game than any of the others that I've played. Whilst the screens can still be a little unwieldy, a hell of a lot of the annoying features of the menus from TEW2005 are gone, and the drag and drop booking is a big help. Also, just little things I'd missed from EWR like title prestige, it was nice to see that again.
If you can get fanatical about detail whilst running your promotion (like I do) then it's just amazing. Everything from deciding on the focus of your workers in development, to building your own dojos or venues, to purchasing title belts. You can man-manage your merchandising to focus around particular workers and their merchandise. Events having their own prestige is good too, so you can watch as your own events gain more and more prestige over the years, getting bigger boosts when the event is really impressive.
Historical scenarios and real-world mods are getting to be great now, with things like national trends (when a particular kind of product is in vogue), narratives (a news report for say, the Global Economic Crisis and so the economy in the game goes down the tube), and workers can be given a set year in which to debut. So you can play a historical mod starting in 1989 and play through to 2010 and watch as all the workers from those years debut and move up (or not) in the world.
If you're into detailed booking of the matches then the "Dirt Sheet Report" gives you feedback detailing all of the elements which were either good or bad in a match or segment, meaning you can really start to target your booking. Also a whole load more options for when booking your matches including, at long last, the "Crazy Bump" option.
I dunno why I'm doing all this to be honest, I'm making such a cack-handed job of it.
That's a list of all the biggest changes in the game since TEW2008, but you can check out the demo of 2010 from the main site and see what you think.
Basically, I reckon if you only really want to be playing short term games with quick and easy booking, you may as well stick with 2005. But I like playing games for the long haul. My 1983 Death of The Territories game has now gotten to 1991, and I've enjoyed setting up my own promotion, booking workers very carefully in particular ways, pushing talent to the moon when their merchandise sold well, seeing my titles and events gain in prestige, etc. Those are the bits I enjoy about the game.
I realise you probably wanted a simple yes or no, so sorry about that. Essentially my answer is buy it if you enjoy the games and are gonna be playing on a routine basis. Don't bother if it's just a very casual thing that you're gonna play an hour or two once every 10 days or so then forget about it again for a while. Helpful, huh?