As a general comment, not airline specific.
The operator will need to keep a hot standby crew at the airplane location for any ad-hoc opportunities. In the wintertime, those are very valuable. Obviously, HOTAC cost is an issue, yet flash-purchase tickets from home don't come cheap either and then there are the rest requirements.
It's a very good question but expect to have a mixed result. Being outstationed for week's time with almost nothing to do is hard to avoid completely. A good scheduling team will try to rotate the pain among the crew team.