pricing ebooks and other formats

I just bought Suzanne Collins Mockingjay (the third book in the Hunger Games series from Scholastic): a print copy for $18.99 from Tim's Bookshop (our local) as a gift for Daniel, and I downloaded an ebook format on the iPhone from Kobo for myself. (We just finished Catching Fire as an audio book last weekend.)

The list price on Amazon is US$ 17.99, which converts to a little over the $20 AUD mark in my calculations, but Amazon has discounted it to US$8.45, which they convert to $9.78 and then they add $11.55 in postage and packaging giving a total of AU$21.33, and I have to wait up to 30 days for my book.

And I could have bought it on audio for $19.58 from Audible for instant download.

The Kobo scenario looks good pricewise and in terms of convenience and I feel quite green about it, Tim's pbook pricing looks good in comparison to Amazon, but who will have the better reading experience, Daniel or me?