If there’s any hardware issue on your dedicated box it might take a lot of time until your box gets back up (hours, days…). On a vps it’s less likely to happen in the first place (hvs are usually better quality) and if that happens migration takes minutes.
OTOH, with dedicated servers you can have bad neighbors in the same rack, but with VPS you can have bad neighbors in the same server. I'm using both dedicated servers and VPS on Hetzner, and, anecdotally, I see more consistent network latency on dedicated servers than on VPS.
The prices mentioned in the top comment are for a Hetzner VPS. A dedicated server (bare metal) on Hetzner with the same specs costs a fraction of that price.
