Oh well if you want to go down that route...

I used to have a Trek 5500 with 9-sp Dura-Ace components, and nice, hand-built wheels.

I also have a Scattante aluminum frame from Perf, onto which I've stuck 9-sp 105 stuff and much cheaper velomax wheels.

I had to ride the Scattante for a bit while my 5500 was getting warranty work done, and my average speed on all my rides was...

...exactly the same as it had been on my 5500.

And I think I paid something like $169 for that Scattante frame w/ fork.