The message is clear: libraries matter. Their solid presence at the heart of our towns sends the proud signal that everyone - whoever they are, whatever their educational background, whatever their age or their needs - is welcome.
All prizes have a role, if they are run with integrity and with a clear focus on reading and quality writing. I don't think any of them is necessary, but they all play an incredibly important role in building a body of literature, in introducing new authors to new readers, and extending reading.
Lots of people have objections to prizes of all types, and it would be extraordinary if everybody agreed on anything that's worthwhile - they never do.