Well I've joined the world of road riding last week.
Lashed out and bought a roadie (Giant OCR Zero 2006).. Nothing too special as it's just a training bike to do some road kays and the price was right ($1800). I'll upgrade to a thylo frame in a month or two hopefully.
I've never ridden a roadie before and it is amazing how efficient they are. I did a loop from Brunswick down to Mordialloc and back (90km) in about 2hr 30mins. Averaged just under 36km/h for the full trip and just under 37km/h for the way down.
That's like 5km/h faster than I could ever done on the MTB.
Couldn't believe it.