Not exact matches
Also back then, in 2003 there were only ~ 350,000
ebooks (Kindle) on
amazon, now the amount is
OVER 3 MILLION.
This club represents
over one million paid
ebooks being sold via
Amazons store that caters to the Kindle line of e-readers.
When I Google «bundle
ebook and print book -
amazon» I find that only a handful of small presses currently offer print + e bundling, for example De Gruyter, which adds digital for a 40 % premium
over print.