Having not taken a train for years Its become a viable option now on cost.
Just come back from London £119 return (2 adults and 2 kids).
If we drove up it would have been about £55 fuel, £35 parking, £15 congestion charge/ULEZ.
For that little bit more it was worth it to relax and just under 2 hours.
Same sort of costing when I went to Stanstead airport a couple of months ago.
Bristol City away next week £13.50 all day return just for me.