It's a nice name. Brandable, very unlikely to be misspelled, no plural/singular confusion on that particular word, and "group" is always a good thing. It encourages collaboration, which then encourages traffic, which encourages ad revenue!
However, it doesn't pass what I call the "conversation test"
"Oh, I found that on Grouppages."
"Are you on Grouppages?"
"So, I was on Grouppages the other day..."
It's one of those cases where it's just too generic to brand to any particular purpose.
If I were you, I'd list it on Sedo or Flippa and hope for the best. Otherwise, renew it for 10 years, put up a basic logo, SEO it a little bit, and create a homepage indicating your interest to sell.
It's not worth dropping. It's a good name. But it will take a real innovator to be able to take it past the parked page point.