I remember a lot of "Hitchhiker's Guide" being random floating out-of-place objects. It stops feeling creative after a while. Even characters soon stopped commenting on them.
I'd definitely say I prefer Monty Python and Terry Pratchett's take on absurdism over Douglas Adams'; I do have a soft spot for some of the higher-level gags Adams sometimes included, as opposed to the moment-to-moment there-and-gone gags.