No one really prevents you from making such topic :-) Just remember to support it and spent some time finding good deals. I prefer to have separate topics, as such things with time tend to become more about lenses or some gear, or anything else except original deal.
How about a thread called Current Good Deals. Where everyone finds the latest good deals that they know about but dont want themselves for fellow users to consider.
This lens is amazing and at $385 a total steal. I have the 2 touch version with the tripod mount, optically they are the same. Here is a test video I did with mine.
You can just get lens support instead. Either for rods, or separate. Tripod mounts are also available on ebay (you just need to know outside diameter).