What you described with the StarGate is a warp. We already have warps. Players can buy a customised warp and two warp signs (there and back) for 5k
/home will teleport you to your chosen home area(s)
/back will take you back to your last teleport point e.g you're in the desert, you do /home to refuel, then you /back to get back to the exact desert point you just left. This is very useful for exploring.
Various world warps /warplist.
Various spawns /t list to see Town Spawns.
If your trouble is genuinely just walking from warp points, then you can donate $5 and get /fly for 1 month.