What would you need remote KVM/IP for? If your ssh ever dies, you can reboot the thing into rescue mode, log in over remote console, fix whatever's broken, and reboot the system.
I have been using an older server offer of theirs for years now, and never had to pay for anything other than the said fee.
What if you upgrade to a kernel which doesn't boot ? Trust me, KVM/IP gives you peace of mind, for 10-15EUR/month it's worth it. On some server configs it's even included in the price (EX8).
then you boot from recovery image - GRUB broke for me completly after routine debian update (imagine that!), and i fixed it using recovery images - you can also request LARA for up to 2h for free.
I have been using an older server offer of theirs for years now, and never had to pay for anything other than the said fee.