Keyboards

I like trance music and i want to know if i want to buy a high class keyboard for trance music what should y buy ( and what model )?
I've heard that tiesto is using a moog voyager ! Does somebody knows what is the model that tiesto is using ?
If you're into this domain you can give me some advices !!!
Thanks

why tiesto?

not because i like his musi , it's only because of the sounds of his keyboards.
Rank 1 also
I'm a beginner and i thought that with a single keyboard model i can reprodeuce all the possible sounds but later i found that is not like that .
I wander also , and if somebody can explain to me why its not posible to have the same quality when somebody is using a virtual instrument ( keyboard ) and a real one . whats the diference ?
By the way , i liked a few song made by tiesto and i went to see him in concerts in ibiza - it was a big dissapointment.
Danny Tenaglia its a real musician !!!