I have an old drill-press with a table that is moved up & down like the one you show in the picture it is ok as long as I don't have a big table or heavy item on the table when I want to move it up or down. My other drill-press has a big shop built table with fence that has a crank system to move it up & down & it really needs it.
Yes having 2 of the same type of tool is handy 2 band-saws 2 planers 2 shapers 2 lathes etc can be handy.
"Forget the flat stuff slap something on the spinny thing and lets go, we're burning daylight" Bart Leetch
"If it ain't round you may be a knuckle dragger""Turners drag their nuckles too, they just do it at a higher RPM"Bart