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

Buy Genmitsu T-Slot Table Top 3040 Aluminum Spoilboard Extension Kit for CNC Router 3018-PRO - Buy Now, Pay Later + FREE pick-up & same day dispatch!

T-Slots aluminum Machine table for The aluminum machine table for your STEPCRAFT D-Series! The T-Slot Machine Table is made of low-tension aluminum and

aluminum profile t slot FEATURES · This structural profile is made of clear anodized extruded aluminum · Nine T-slot are provided, one on each side, four on top and three on the

aluminum t slot track These industrial workbenches feature all aluminum construction except for the hardware and mounting feet and have T Slot table tops The T Slots