Wow, the Scillonian is the same company as Skybus and they won't transfer tickets!
Get some competition in there, BN2 or DHC6 operator from NQY, last I checked Bodmin was a licensed airfield, it doesn't cost GBP100 for one way travel to from the islands to operate and Bodmin, despite it's weather problems, has a mainline rail station
The Isles of Scilly Steamship Company control
all commercial transport to the Scillies, whether it be air or sea, passenger or cargo. They also own Land's End Airport, which makes the possibility of anyone else starting up a service from there unlikely as they can pretty much block it any way they like -hence why the people behind the new heliport scheme were not at all keen on running it from there even before weather considerations were taken into account.
Bodmin may be licensed but not, I think, for airline ops. Newquay is the only viable alternative.