Role of Support Groups

I have been hosting a support group for Caregivers of people with dementia for about 4 years now.  Attendance is declining and I'm wondering if it is even a useful format any more.  the Alzheimer's Association has a website with so much information.  Maybe in this day online information is what people are looking for?  Then I have the one spouse who attends every month and tells me he doesn't get anything out of it.  Do I need to keep using my time and resources to keep something going that is not helping anyone?  I always felt like there was something important in the connecting of people who are having similar experiences.  I spoke with the one faithful attendee and we talked about changing the time.  I originally scheduled it for afternoon thinking that spouses who are caring for someone would be less likely to drive at night.  We'll try evening and see if that helps attendance.  Maybe I'm just in a funk and need to refresh.  I guess time will tell.