I don't think it's odd.
Buying a used bike privately is a very cost effective way of getting a free / nearly free long term test ride. If you don't like it, flog it, and the hit will be minimal.
After all, a 1hr / half day / weekend test ride does't really tell you enough
+1
I have bought new and used without test rides, with used I agree with above statement.
For new you are taking a potentially expensive gamble without a test ride, but often new bikes are not available for a demo, although it seems more common now.
Even so a half hour ride will only confirm if you really do not like the bike at all and highlight the real big deal breakers - still much better than getting two lamposts from the dealer and realising you have just made a huge mistake
I prefer to get at least an hour if I can, long enough to see if comfort is an issue and ride the bike on dual carriageway / motorway plus a mix of A roads, B roads and some back lanes.
Dunno why anyone can moan about dealer excess - some dealers only give third party - and often do not make it clear, I always ask and are amazed that dealers will just stuff a disclaimer under your nose and not point this out.
£1,000 excess is not unreasonable, having worked in the industry I have seen complete twonks write-off bikes at the first corner they come too, or drop them in the car park trying to impress onlookers with their GP starting technique.
Lobbing your own bike up the road will cost you quite a bit, by the time you pay the excess, lose your no claims and in the event of a write-off get a crap low valuation for your pride and joy. Why should dealers provide a free crash a bike service?
The excess is so high due to the number of morons who cannot ride for 30 minutes without falling off, if your incapable of riding an unfamiliar machine then you should not be on the road - or should stick to the bike you passed your test on for the rest of your life.
BMW are by far the best for demo rides, there is not much else I like about the brand, but they do put far more effort into allowing potential customers to try pretty much any of their models than any other manufacturer.