Silverstone probably works out the same as Barcelona cost-wise, as the date is not shared by GT Open. It's good to have two British F2 rounds.
Think you'll find all series offer winter tests at pretty much cost-prices to attract drivers.
I'm gutted we're not going back to Austria. It was the most amazing circuit I've been to. But Paul Ricard and Budapest will be fun. More so than Magny-Cours anyway