you pay dearly for the blinds in the glass option. I would guess it added oer $1k to your total compared to the Proline or architect series windows.
Also realize they are not a true triple pane window. The inner pane is not air sealed and does not offer the same performance of a sealed triple pane window. The u value difference is minimal compared to the dual pane windows.
btw- prepared to get bashed by people on this forum about Pella...even though I have personally never had an issue with any of their products on all the buildings I have done...

There are only a few manufacturers offing the blinds in glass which I have read about: Pella, Sunrise, and Eagle.
Pella only offers them in fixed and casement style. Using two casements in the combination window adds to the cost.

The "triple pane" description is deceptive, I agree.

Pella has closed the local independent showroom and now serves the area from almost 200 miles away. They are pushing installation by themselves, not through their "certified contractors".

Lowes Pellas special order price is sweetened a bit by a current promotion offering a $400 gift card for a $2500 purchase. There is might be another 10% discount for using a "mover's card" and 5% for using a Lowes credit card.

I'm going to check prices with Sunrise and Eagle using sliders instead of casements. I've been told that the blinds in these brands are not as attractive as are the Pellas.

The Pella blind is the best functioning and looking IMO compared to others. Ealge uses theirs in a dual pane option without near the amount of blind types or colors. The pella you can also change them later if you decide to.
A slider window is horribly inefficient and you will most likley not achieve the same look as you will with the tri-casement. What about going fixed-casement-fixed to reduce costs slightly?

"What about going fixed-casement-fixed to reduce costs slightly?"

Good idea! We rarely open the existing awning windows except when something burns while cooking. Our remodel will have a powerful range hood that will help that.

Thanks!

"What about going fixed-casement-fixed to reduce costs slightly?"

I checked the Pella website, and that configuration is unfortunately not offered.

although not a fan at all of Pella, 2 single fixed casements and 1 single venting casement are normally available and can be mulled together to make up your desired configuration. Or possibly even factory ordered as F-V-F as opposed to the standard L-S-R.

Millworkman, this is from the Pella web site:
http://www.pellaadm.com/userdocs/documents/CM_COMBO.pdf

Perhaps, Pella offers combinations not shown in its catalog?

doesn't hurt to ask

wobbly- they can factor mull about any combination. I did a home where I used 5 Designers, 32x60 with a transom on top of each, 32x18. Only 2 of the windows are casements, rest fixed. It came to the job site in 2 pieces with a mulling kit since they were so big.

Izerarc and millworkman,
You are correct. Pella offers combination windows configurations other than those shown on the web. Pella Outside Sales quote for the suggested Fixed-Vent-Fixed combination was MUCH lower than Lowes.