I reach for my 1/4" regularly, I use it for pattern following at which, it is fantastic. the 1/2" gets used less often, but when needed is the only tool for the job.
personally, for 400 quid, I'd splash 200 on the 1/2" and buy a katsu 1/4" for 30-40 quid. the remain 60 quid will get you...