For many people, it depends a lot on whether they have a home track to race on.
I don't currently, so I definitely spend more time here and I don't think this is at all abnormal.
If they do have a home track, then another factor is whether they have anyone to race with, or a Challenger, or a Pacer (which I prefer to Challenger)
As for Mop's suggestion of simultaneous activities - I guess it depends on how many arms/tentacles one has, how long they are and whether one has benefit of a split personality.
For some, this might well be a possibility - Alien life forms perhaps
Now Moped will start eulogising how Scalextric Digital, in addition to doing the washing up, will ensure certain succes for SETI (Search for Extra-Terrestrial Intelligence)
Although I think perhaps we have already, unwittingly found it.