The
NIV Study Bible,
Archaeological Study Bible and
NIV Faith in Action Study Bible are $4.99 at Amazon and Kobo. I linked B&N, even though they're still showing regular prices; they've been a little slow to update sale prices lately. Zondervan books are
not eligible for coupons at Kobo in the US.
NIV Study Bible:
Kobo Kobo (red letter edition) Amazon B&N
Archaeological Study Bible:
Kobo Amazon B&N
Faith in Action:
Kobo Amazon B&N
This is the first time, by the way, that I've seen the
Archaeological Study Bible ebook on sale.
Edit: B&N now shows the sale prices.