Just wondering how many years will it be until Draytek start releasing 10 Gigabit switches and routers.

Switches...probably not much demand from DrayTek#s core customer base.

Routers? Do you know how much a 10Gb/s router costs ??? Again, not really DrayTek#s customers.

( unless you mean a regular DrayTek style router with a 10Gb/s port... why do you need it ?)

I guess it will be a decade or more then perhaps. I know Netgear do some 10GbE switches costing in the mid to high hundreds.