I have 1000 points left from last year when I stayed at a Marriott in Germany booked on Priceline (was a bonus for eating there). We don't normally stay at Marriotts as they tend to be more expensive than other brands in the places we visit so not likely we will ever get points for stays.

It costs too much to buy points to get it to 10,000 to transfer to an airline.

Is there anyway to earn points at Marriott from surveys or anything else that requires me to put in time and effort rather than $$$?

Can they be transferred to someone else, is it worth posting them on CC?