I think we ought to look at what we as pilots actually need to take with us. My list of 'essentials' for a day out is:
Chart - The only thing I buy regularly, which considering it is a flight safety item, should be cheaper.
Watch - Omega Speedmaster, not bought specifically for flying but I like it and it does the job as a stopwatch too.
Flight Guide - AIP copies of UK aerodromes if required, but AFE guide for airstrip contact numbers.
Mobile Phone - Essential these days, with WiFi
Cash - Essential for landing fees.
Headset - The cheapest one for the job. Does it receive? Yes. Does it transmit? Yes.
Radio - Icom. Not new, but works.
Fuel tester - Old glass jar!
Anything else just sits in my bag (which I bought in France for 50% of the price of a 'Real Pilot's case' over here)
I have French charts bought from French aerodromes, sunglasses from Boots, and a whole range of other pilot junk that just isn't needed..