Are T-slot tables necessary and is it worth paying more for steel?

T-slot t slotted aluminum extrusion slot track $

But, does anyone have an opinion of a T-slot cut into the wood vs T-track? Did it work out for you or is it more trouble than its worth?

steel t slot track Don't tangle with us! – Grass-type Grunt This Grunt has Grass type Pokémon Steel Pokémon are weak to Fire-type attacks Slot #1, Slot #2, Slot #3

steel t slot extrusion For mount on a machine or workbench 8 mm slot according to DIN 650 Made of solid cast aluminum Measure: 800x20x20mm