Amen, Ships4ever, I am doing this just for fun, and I am definitely having a lot of fun.
My basic story is that I lost my job early last year, I'm almost 61 now and I haven't even landed a single job interview since then, but I am scraping along just fine on casual part time work, superannuation and savings – but I have stacks of time on my hands. So as a model collector it was a natural (and cheaper) progression to model-building.
I never did model building as a kid, and my hands aren't exactly rock-steady and my eyes are in worse shape, so I set my sights and expectations nice and low, with the emphasis on having fun and not sweating too much on authenticity, build quality etc.
All that has worked out fine – better than expected in fact – but as well as really enjoying myself and unleashing a level of creativity I didn't know I had, I have also discovered something else – the joy of solitude. I do all my model building in my tiny, cramped garden shed, and out there I enjoy the relative quiet of the garden for many hours on end, all by myself. I just love being there.