I'd encourage everyone to try and put work in the Instant Gallery - as others have said, it really is a celebration of all things woodturning.
PhilipS mentions the legendary WoW swaps - they are great - you get a piece of work from a turner you have never met before and usually from another country. So far I've got pieces from Canada, Australia and USA, some from unknown turners, one from a well-known turner - it's total luck of the draw and great fun. You get some nice pieces of work and make new friends. We UK Wowies had a swap a year or so ago amongst ourselves which was quite successful.
The Instant Gallery at Loughborough is always an eye-opener as to what is being done in woodturning in the UK -we're not all "round and brown". The other benefit is that you can be admiring a piece of work on show and talking to the person next to you - could be Michael Gibson (a nice guy), Mark Sanger or another Club turner - you never know who is looking at the work. I recall buying some pieces at the 2007 seminar and later bumping into the maker - we had a great discussion. This is one of the benefits of a venue of the size used at Loughborough - easy to network.
It's well worth putting work into the Instant Gallery and I look forward to seeing the photos of the display.