Asterisk on VPS - smart idea?

Hi fellas,

I just bought myself a VOIP phone. (Cisco SPA504G model) and I want to mess around with Asterisk or FreePBX.

Now this is my problem:

1. I could buy a raspberry pi and install Asterisk on that.
2. Or I could just run Asterisk on my VPS. Beef that up a bit (if needed).

And connect my Cisco SPA504G to the static address of the VPS.

Smart idea? Bad idea? I'm curious. I want to get my landline number from a Voip/SIP provider, so I don't need any support for legacy phone systems.

Cheers

Links:

https://betanews.com/2016/05/19/udoo-x86-10x-more-powerful-than-raspberry-pi-3/