Never happy - last year, there wasn't a winter event like this and everyone moaned that some of the park should be open as the families would love it, etc etc... so they do arrange to open the front of the park, families will love it... but it's never enough. :P
To the vast majority of people staying at the Hotels in the closed season, I imagine the current line-up will be great and is certainly an improvement on last year's offering.
Oh, and before someone moans about "maintenance" Spinball doesn't need closed season maintenance as there is always one car off the track getting a full strip down all year round and so could open.
Spike - sorry, but for such a confident statement given as fact, it couldn't be more wrong. Maintaining a ride like Spinball is a hell of a lot more than an annual service of cars, Spinball's maintenance is such that, no, they can't open it.
It's a shame that there isn't a thrill ride open, but I'm sure Towers don't do it just to be mean, and there are reasons for it. Remember the UK's H&S regulations are an awful lot more stringent than in mainland Europe, so it's not as easy for Towers to open rides halfway through the closed season as it is for PL and EP.
As for the annual passes, yes it's a shame, I agree. However, I have read in the pass T&Cs that the pass isn't valid for special events, and the fact that it generally - certainly at Towers - always has been, a small event with a minimal line-up everyone's moaning would bore them stiff isn't really the end of the world - however much it'd be nice if they were valid.