What time is it? Watches and horology

I was thinking about this off the back of the Lazer sale thread. With interest rates being shit and all how do watches stack up as a medium to long term investment. I'm thinking about 5-15 years.

This JLC Futurematic caught my eye.
http://www.ebay.co.uk/itm/JAEGER-LECOULTRE-FUTUREMATIC-100-ORIGINAL-BOX-PAPERS-SERVICED-WATCH-VIDEO-/190838248967?pt=Wristwatches&hash=item2c6ed89607
http://i.ebayimg.com/t/JAEGER-LECOULTRE-FUTUREMATIC-100-ORIGINAL-BOX-PAPERS-SERVICED-WATCH-VIDEO-/00/s/MTIwMFgxNjAw/z/tJwAAMXQaOVRjuf1/$T2eC16RHJGUFFh1W2-9tBRjuf04CTw~~60_57.JPG
http://i.ebayimg.com/t/JAEGER-LECOULTRE-FUTUREMATIC-100-ORIGINAL-BOX-PAPERS-SERVICED-WATCH-VIDEO-/00/s/MTIwMFgxNjAw/z/Y3wAAMXQslhRjugr/$(KGrHqJHJFEFGBRUQKltBRjugrkmwQ~~60_57.JPG

There was a shit one with a white dial on ebay a while back that I really liked the look of, so since then I've been keeping half an eye out. This one looks to be in amazing condition and has all the boxes etc.

In terms of ongoing costs the only ones I can think of are insurance and servicing - any others? Also how would a vintage automatic fare if it was not in use? I know you can get those winding machines, but then is there a risk of requiring more servicing?

If its not in use the the oils will go sticky. But if you're looking to preserve it I wouldn't use it, or use a watch winder. A ziplock bag with a few of those silica bags would be fine