I ride my bent for tours and my wedgie in rush hour traffic. Both are wonderful bikes that serve their purposes. But nothing beats a bent for distance and comfort. I rode 450 miles in a week with no pain on my bent, including two consecutive centuries in record time (for me).
My bike is a short wheelbase high racer with underseat steering. It fits just fine on the same carrier I use for my wedgie. (The carrier was a cheap $40 job I got a WalMart that attaches to my trunk.) I've gone over 50mph with no steering instability -- in fact, the underseat steering feels like I'm flying at high speeds.
Life on a bent is wonderful. Try as many models as you can -- on terrain that resembles what you will actually ride -- and go for it! Consider shopping on ebay after you find a model you like.