I can't believe I didn't contribute to this thread last year...
My collection peaked at 27, largely because I was trying to get my head around what I was really into. This number has slowly decreased, mostly through selling several to buy one - a slow inexorable move upwards in terms of average value. When this thread was started I was probably down to about 16, the day before yesterday it was 12 and today it's 13 courtesy of a rather special incoming that I collected yesterday afternoon.
I once said that I didn't think I would get below 9 - I'm beginning to think around a dozen is 'right' for me...
Simon