Out of interest, do you really think that if we went down to League 1 we'd get sub 10,000 crowds again, or even worse, crowds of less than 5,000?
I don't. Not at all. Things have changed quite a bit since then.
Our crowds have fluctuated over the years - success = more through the turnstiles. At our current stadium we've had 4 seasons where our average crowd has been below 20k. This is our best run of home attendances since relegation from Division 1 in 1962.
As for Sunderland, in the 80s their crowd virtually halved after promotion to Division 1 and then relegation to Division 3. Their crowds doubled after they left Roker Park. Ours increased after we left Ninian Park and we haven't looked back.
The 80s and 90s were shit, but they ain't coming back.