Most of my 15ish bikes have been purchased as frames except my newest mtb, which was bought sight unseen by looking at geo charts.
I bought my main road bike used so I did test ride that one. It felt absolutely horrible but I knew I could make it work, so I got it.
It's funny how when a person asks about buying a new bike on BF, they get the advice of test ride, test ride, test ride.
Then a thread like this comes up and everyone says they never test ride.