Focal 1028 Be II vs. 1038 Be II -- is the big price difference worth it to go 1038?

After going around and around researching mid size floor standing speakers of every imaginable brand for the last couple years, I'm really tempted, at current used prices, to pick up a set of 1028 Be2(I use the "2" because that is how they are advertised by both dealers and private sellers).   I don't see how you can achieve better all around sound quality in a floor stander for ~$3500.  

But I'd really love a set of 1038 Be2 because of the extra woofer and cabinet volume, but the asking prices are way, way higher than the 1028, with a difference between 1028 and 1038 of as much as $2,500 to $3,000.  You can buy a whole bunch of other stuff with that price difference!

My question is, why is there so much difference in price, considering that even the Focal statistics indicate the 1038 only digging 2 dB deeper in the bass? It's hard to pony up that much more cash if there's not really much noticeable difference in an average room.