Are motorbike tank covers worth getting?

I really like the look of tank covers and they look practical if I want to add a bag and lug gear.
the bike I have is an upright tourier and is mostly black except the tank which comes silver as standard.
the tank is scratched up so I was thinking either a black tank cover or a black used tank or maybe even a paint job but I would need the bike ready in a day.
my worry with the cover is will it last and how bad is it in direct sunshine as I assume it heats up unlike a metal tank which would remove the heat more.
how much would a tank cost to be painted?

the bike is a Honda varadero 125cc

The main reason for them is to fit bags as you say. But have you got a lockable Top Box as most Tank Bags just Un-Clip. I used to have a Double Helmet Top Box to hold a Helmet and Wet Weather Gear.

Andy C

They're pretty good to have, stop stone chips occurring and also stop your jacket zip from marking the tank etc. However, if your tank is already in need of some repair, then I'm not sure if it's worth having one. Perhaps better if you want to protect a freshly painted or refurbished tank. Not sure about how they react to heat, but I know in sunlight even a fuel tank gets hot.