I've seen they're replacing their outside displays with new ones but it always amuses me to see how run down they let things get.
Photo is from today
But as said above, noone with any influence travels via XC... Trees falling in forests and all that
There's been many good reasons as to why parliament should be held in other locations (for example to refurbish the palaces at Westminster, although some have suggested that it should be a regular thing), there's an argument that the use of public transport around the country could improve if this were to happen.
As even if the ministers only used their ministerial cars or travel in first class, there's a good chance at least some of their aids would need to use public transport/travel in standard class and so there would be some influence.
Imagine how much more of a priority a metro system for (say) Leeds it would be if Parliament was housed there for 2 months of the year every couple of years, or how much more of a priority capacity on XC was needed if the same were the situation for places like Derby and Sheffield (whilst they have a mainline from London there would be a reasonable number of MP's likely to use XC services).