Good information.
Even a 600cc supersport can hit 90MPH in first gear with stock gearing. It can run circles around a 1981 650. Maybe you will be alright with a 1000, but I talk to people all the time it seems who are trading in their liter bikes for something smaller to have more fun.
I personally don't think of used bikes as "used and abused." Some are, I'm sure, but you can find a lot of good deals. A lot of times you can get a low mileage used bike that already has some mods giving you more performance and better looks than stock.
I rode a 650 for a season before I switched to a 600cc supersport. Extremely happy with the 600 and don't see a need for a 1000.
Ducati's look bad ass, no doubt, but if you aren't looking to spend some $$$ i would stick to the cheaper alternatives.