That's very true - it would be very useful to have some of these links re-opened.  Especially those with a major town at one end or the other.  In this case, two - I'm guessing from a quick look at the map that this is the Coalville line you're talking about?

I've been over it on a railtour about 35 years ago.  It definitely wouldn't take as much effort as some to re-instate.