In reply to Undertow: I've got a range of climbing equipment some of which gets used indoors and some that doesn't, however the only thing that was bought with a partial view to indoor use was my short rope (33 metres).
Using a high performance 60/70 metre sport rope indoors doesn't make the slightest sense, when you can get a more robust short rope for only 40 quid.
That said, the rope in question has had plenty of use outdoors as well, on stuff from gritstone to slate to 1000' VS mountain routes in Scotland.