You may want to check out Specialized. They are closing out last years model Turbo X for ca. $2500 (MSRP $4000), and it is a very well spec'ed, purpose-built, pedal assist. I looked at a number of options and considered this out of range for the original price, but at $2500 it is a steal given all the extras. I posted about it in this thread Specialized Turbo X closeout deal.
p.s. I've been riding trek bikes since my very first model 710 purchased in 1980. So nothing in particular against Trek.