Some routers allow lift-type adjustment without the added expense of a lift. My example is a Bosch 1617 EVSPK, with the fixed base mounted in my table, and i can pop the motor out to use in the plunge base. In the table, i can make most adjustments from above--but i do have to reach below the table to unlock the motor to do that. If i added a Muscle Chuck, i could probably even make above the table bit changes. In exchange for the inconvenience of reaching under the table--i saved enough to buy a second 1617 EVSPK and a used Grizzly 6" long bed jointer--worth the inconvenience to me, but your mileage may vary.
Other routers offer the same ability, but most rely on the plunge base in the table. I favor the Bosch for the reason that with the plunge base for use out of the table--the plunge base can do anything a fixed router can, but a fixed base router cannot plunge.
My take, and my methods, are not preferred by all. Which is cool--that supports choice!!