Jeppview (and incarnations thereof for MFDs etc), and the AIP, have different (though obviously overlapping) uses.
Jepp produce plates (airport charts) and enroute VFR and IFR charts, presented in a highly uniform manner and with a 14-day update service for the airport charts.
The presentation for Goodwood is the same as for Kathmandu. This is why nearly the whole world flies professionally with Jepps (I believe some factions in the UK, like BA and the RAF when they go bombing abroad, use
Aerads 
).
But the Jepp textual airport data (phone numbers, opening hours, etc) is woefully totally useless, and this is where one might open the AIP and look for contact details and then contact the airport directly. In some 3rd world countries, like Spain, the airports almost never reply to emails or faxes, but the AIP is quite reliable. Same for "PNR Customs" contact details, etc.
I too find it obnoxious that the CAA generates PDFs with Copy disabled. Anybody who wants to crack this can do so in seconds, with free utilities.
The UK Met Office publishes very little data, because they have to make money. All they do is the MSLP charts, the rather naff F214/215/414/415, SigWx and a few other bits. The real stuff comes from a 3D model and the UKMO one costs a few grand a year to get access to. This is where the US GFS model comes in and all the free websites present various graphical presentations from that.