My experience is similar to what you guys wrote Tuloose and Chico. I had been getting faster and faster, first on my Specialized Tarmac, then my Litespeed T1, when I then put aerobars on and knew that I was getting to a point that the T1 wasn't going to satisfy my desire for more speed. Then, so much time on T1 with the aerobars was starting to cause neck, back, butt and wrist pain. So, I started looking for something faster and more comfortable. Velomobiles and recumbents popped up in my search after watching the WHPSC at Battle Mountain videos so it appeared that the speed issue was solved. I then started trying to find out about the comfort issue. I registered for BROL and started getting input about many of the bikes available from users who rode them, a source of information that I often trust more than manufacturer's claims.
I pay attention to what the riders of each bike say what they like about the bike and what they would like changed to see if I should wait for a new model. Sometimes what they write is a good source of information about design flaws or common issues. I even read what rider's wrote about bikes that didn't work out for them to see if there was a chance I would experience the same thing. 1 thing I noticed though is that there were several rider's harping on bikes a little more than what anyone would consider appropriate. So, I clicked on the user's profiles and scrolled through their then recent posts and sure enough, it was easy to see that they had tried the bike and for whatever reason it didn't work out for them, and they hadn't been shy about voicing their disappointment anytime that bike was mentioned. I think it is fair to now say that most didn't bother to truly try to master it, but an MBB not playing nice with their individual physical limitations was also in play. Either way though, I discounted their opinion because I have no physical limitations that I felt an MBB would would expose, and more importantly, I don't give up.
During my search for a faster bike lowracers soon caught my eye, but high racers were on the radar. Velomobiles were out since where I ride there are some gates that a velomobile won't fit through. I saw some V20 and S40 videos and while the S40 would likely still be faster than my T1 with aerobars, and it would be great for touring, I knew I wouldn't be touring as much as I would be KOM chasing so the V20 made the short list. I eventually bought one and even after putting over 20,000km (12,000 miles) on it I still can't think of how it could be better. Yeah, the V20c is even better with carbon fiber parts up front and disc brakes (and more), but considering going back to a diamond framed bike for exercise is not going to happen. I'd rather be fast and comfortable for all-day rides than slogging it out on something slower and more painful.