10million for a 35 year old keeper is quite silly imo. He is a good keeper but he is not world class imo. Keepers do go on for longer but still, there is still no gaurantee that they will last like a Van der Sar. great keepers seem to wain at around 36 definately 37-38 upwards. So we would be paying 10million for a couple of seasons.
Schwarzer is 39 I think, so if we want him we will probably have to spend about 3million...how many seasons will we get out of him? nobody knows?
I would like either of them for now and I would definately spend the money on Given, because I want to win something soon. But the money will still be much more than they are worth.
EDIT: just had a look at the most expensive goalkeepers and the top two;
Buffon at around 32-33million was 23 when he went to Juventus. (this is jsut the exception though - ridiculous amount of money, but atleast they could get plenty of years out of him)
The next expensive was Barthez to Man Utd when he was 29 I think for 7.8million.
Cech was around 7mill when he went to chelsea again much younger at the time of moving.
So paying 10million for Given at 35 definately does seem silly