Well, if you're considering any VPN service, I would recommend doing a search for that VPN + whatever services you'd be using it with. Mullvad is not great for streaming content because they don't aim to get around VPN IP blocks, and they aren't specifically trying to provide access to content outside your zone. I don't use it for streaming, so I don't run into those issues.

It's true that if you look elsewhere you can find better deals specifically if you buy in bulk. NordVPN's "Standard" package can be had for just over the upper limit you suggested, at $86.13 for your first two years before tax. No guarantees you can resub at that same price after that period is up, but they have sales all the time and if you're careful you can probably re-up at a good time. Worth looking if you're considering a VPN and price is a sticking point.