I know most clubs outside the SL couldn't afford to be in SL but also some could (not many though 2 at most at the minute).
None of them can.
The original requirement for an SL club was that is was properly resourced and staffed and the estimate was that would take £4,000,000 a year at least. Warrington turn over £5,500,000 and Catalans turn over £6,000,000.
The requirement for a CC club to apply for Superleague was a turnover NOW of at least £1,000,000.
Most of them don't reach that figure, I believe Rovers may just get past that. IMHO it leaves championship clubs across the board short of £3,000,000 a year to financially compete in Superleague.
Now of course if SKY give a club £1,200,000 a year that helps. But there is still a massive hole in the budget for not only every Championship club to fill but some "so called" SL clubs too.
That could be done by crowds going up, but they have to go up to 8,000 if you have the right stadium that can maximise the income from fans other wise you need 10,000 to break even. These are figures from Salford, Widnes, Bradford, Fartown and HKR BTW I noted them down. I didn't make them up.
Salfords first season in Barton saw 5192 not 8000 and that was too much for Wilkinson and Clague so they walked away and the club nearly died on the spot.
Widnes' first season in SL saw 6046. It's a loss maker but O'Connor battles on
Bradfords crowds dropped alarmingly to 8436 in 2010 part of the reason they went bust.
Fartown's return to SL saw them on loss making crowds of 4722 this last four years despite heavy investment from Mr. Davey they flatline at an average of a loss making 7,500, not too bad though.
HKR's return saw crowds at 8544 and the good times were back. They haven't kicked on and that has meant Mr, Hudgell had to make up the losses, but last years 7,700 was disappointing for him and he said he could not go on making up those losses.
Castleford have a chairman reported to put in sums like £500,000 to keep them afloat. Crowds are around 7,000, but financially they cannot hack SL and are openly admitting this.
Halifax applied for SL but when asked how they would fund it they couldn't provide a plausible answer.
Not only can't any Championship club as a business afford Superleague nor can several Superleague clubs.
So beyond the few clubs who get the crowds the only entry ticket is a rich man prepared to bankroll his club by very large amounts of money season upon season. Messrs Nahaboo and Chapman will need to dig deep.