Artefacts work better as ambassadors?

About a month ago, I wrote a piece on Slugger about the Celtic League's attempt to "repatriate" certain artefacts, described as "Celtic Treasures", back to their "home" countries or regions.

One of those artefacts is the Mold Cape and this is the reply of the Welsh Minister of Heritage to the Celtic League's campaign:

The Mold Cape is a highly significant artefact which places Wales in a worldwide context. It is prominently displayed and promoted by the British Museum and is seen by millions of visitors. The Cape is an important `ambassador' for Wales in its current location and we therefore have no plans to seek its permanent return to Wales.

In 2005, the Welsh Assembly Government was pleased to support a temporary exhibition, through its Sharing Treasures grant scheme, which enabled the Cape to go on display in Wrexham Museum. Through this scheme, we will continue to support museums in Wales to display important artefacts and to develop partnerships with other museums which make such opportunities possible.

Thank you for taking the time to write to me on this matter.

Alun Ffred Jones AC/AM
Y Gweinidog dros Dreftadaeth/Minister for Heritage"

A practical and sensible (as opposed to the narrow, ideological alternative) approach to the question.
It is also probably worthwhile pointing out Alun Ffred Jones is, in fact, a member of Plaid Cymru.