Marco's pricing is ridiculous - again.
If your tube and ballast fail, the incremental cost to switch to LED is not that much. And you do save energy if you remove the ballast, though removal isn't necessary if you get an inductive ballast-compatible tube like the one Bojo linked to. Once the ballast dies you would need to remove it and rewire.
Typically the light output is a little less on a LED tube as well as the beam spread being different. Some folks may not like it. But cost isn't a reason not to do it, especially if your backbox is dark.
And I wouldn't be surprised if "LED backbox lighting" became s feature of future Stern LEs.
viperrwk