Ya know
old compacts aren't bad machine but again they're nothing special these days. I mean if you actually take the time to compare a stock one to a miele you find several advantages with a Miele.
Things like It's filtration, speed control, a power nozzle with a height adjustment allowing it to clean a wider variety of carpets, a cogged belt meaning significantly less belt changes, a cord winder, quieter operation, a power nozzle on/off switch, a bare floor friendly power nozzle, the machine is lighter, it's definitely more maneuverable.
The only real advantages a compact has is possibly longevity and cost of use. If we sit here and discuss all the changes made to one specific machine like les's where a different nozzle has been used then it's safe to say that any machine with higher specs that can be converted to use the same nozzle would also sit above the compact. Like if I were to convert a lux platinum or a Perfect C101 to use the same nozzle.
Again it's not trying to say they're bad machine they're just not the be all end all of vacuums some people try to say they are.