@Sukoyan—
I don't guarantee it, but I think that if you check around (not just Amazon and Comixology but also eBay), you may find that, even with S&H, you can save money with used or remaindered hardcopy.
Edit: But be aware that there are various connected sellers on eBay who advertise tankobon as New, but deliver copies with remainder marks. eBay will refund your money if you complain, but the whole business is a hassle if you're hoping for collectible copies.