Generally, DVC does not give gifts for taking the tour. Occationally people have gotten dinner out of it, and very rarely, someone gets the offer of a hotel room in exchange for the tour via postcard (I think there has been a single report of this over on the DVC board).
If you are looking to BUY, look into DVC - although it is expensive, it holds its value well, and is the only timeshare where you will get to stay on-site regularly (if that is important to you). If you are looking to get stuff, other timeshares will be a better investment in your time - but practice saying no! If you are looking to buy offsite, buy resale - you will save a ton of money.