I'd say no only because there seems to be some durability issues with the stock style gaskets/seals, if thats what you are using.
They SHOULD be reusable if the seals are in good shape (the stock ones use neoprene for those that don't know) but I've heard of a few people that say theirs leaked, and thats without reusing them. Cheap insurance to get another set IMO.
I've seen valvecover gaskets that were made out of the same stuff, and after 100,000 miles, they still looked brand new.