Anyone have any experience or opinions regarding Marvin Integrity (w/wood interior) to Andersen 200 Series (w/wood interior)?

The main difference (that I can tell) is that the Marvin is Ultrex (fiberglass) and the Andersen is vinyl.

After pricing both with local distributors, it looks like the Marvin is approx $70 more per window. Doesn't sound like much, but an extra $1500 towards our already strained budget means a lot to us!

Thanks!

James