The world of community pages such as HubPages is always a dangerous one. At any moment the owners of the community site can throw a spanner into the works and blow all your hard work away.
One tweak of their algorhytm and you are history in search engine parlance.
So for this reason I would say keep as many irons in the fire as you possibly can. Don't throw away HubPages but spread out to other sites. Blog for yourself, maybe move into online retailing opening up affilate links to sites such as zazzle.com, cafepress.com and godaddy.com.
Affilliate sites pay some good referal bonuses and with sites like zazzle and cafepress you don't even need to produce designs yourself these days you link to a certain keyword product list and bang you can start earning cash without having to make anything.
If you need to write, try squidoo.com too or List my 5.com they are both different from HubPages but they offer you an outlet and a chance of marketing your work if any one of the sites you use botches their search engine standing.