LupusE
10
I don’t think so.
There are two reasons for the Slate Plus: Dimension and weight 
But both together are not worth to purchase a new one.
The power consumption of the Slate Plus is a little less, important in the RV, not in the Hotel.
Even if I have fiber Internet (200 to 900 mb/s without VPN) in most places I stay regularly, I’m not a speed junkie. This would be the main reason to stay at the Slate AX.
I want to try the new AVM Fritz!Box 7590 Wireguard next. I don’t expect it will be better than my Debian based VM. I do not know how both will perform against a VPN provider, since I never used one.