You won't find a pick-up option as they are only available from the Australia Post online shop. They're not $24.95 for 100, they're $15 for 100 as previously stated.
I don't know about you, but as well as flat rate satchels I actually use numerous other items from within the Australia Post product range... such as prepaid express post envelopes, prepaid envelopes with tracking, priority labels, registered Post labels, etc.. It really doesn't take much to hit the $60+ free shipping mark - especially when the AP product range is not limited to postage products.
Personally, I prefer the eBay logo to be on items I have sold via eBay... and not just on the satchels, but the eBay Plus packaging tape as well. Customers like to see that they're item wasn't drop shipped. Of course, I don't use the eBay branded products for items I sell on other platforms.
Given that the price of $0.15 is more than double an unbranded satchel (not flat rate), I definitely never use the eBay satchels for any item which weighs under 500g.
