Because you published before me these features, let me suggest you what i had planned to add that you didn't add :

* News HUB (Small bonus of craze and add small server load)
* Games offered by the shop (Big craze bonus and small sales bonus but big load of servers)
* Demos/Trials (moderate sales bonus and moderate server load)
* Secure Payment Protection (Small sales bonus and small server load)
* Anti-bot 2.0 (Server load reduction)
* 2-step verification (server load reduction)

I hope you can add these ! Thanks for the work.

*Categorization(moderate sales bonus and moderate server load)

*Cross-selling and Up-Selling(Big craze bonus and small sales bonus but big load of servers)

*Template options and customization( moderate sales bonus and small server load)

*One Page Checkout(Small sales bonus and small server load)