220+ Vs 718+?

[Enquiries]

Hello how are you doing, I watched lot of your videos on nas and I like your content, I am ready to buy a nas but I am confused in a brand new 220+ vs used 718+ The difference in price is $110 (718 being cheaper around 2 years old) I will be mainly using to backup pictures and videos from my Mac to it and backing up 3 iPhones and MacBook and iMac to it, might be running an email server for me but that’s not decided yet. If you can please let me know i would really appreciate that.

Thanks
Parry