Depends what you want from your weekly speedway fix. To see some of the best young Aussie talent (albeit until they pack their rucksacks and head over to Poland), or a team made up of Brits and lower rate Danes/Swedes.
Speedway is an entertainment business. You want the best riders possible over here. There may be one or two Brits who will make the grade, but many will never be above Championship reserve class.
"Team GB" is a bit of a nonsense. An excuse to get the Union flags out for a week or so during the World Cup. The rest of the time we're cheering on our own sides made up mostly of foreigners.