Millenia S Vs. 25 litre

I was told that I'm better off buying a Regular Millenia over a super charged millenis because when parts start going ou the regular millenia is three times cheaper to fix.

Any thoughts that anyone has on this would be greately appreciated

Also, what is the reputation for the transmissions on these cars?

Thanks for the help

A mechanic told me the same thing about the millenia s it cost alot more to service it then my 2.5