Once MassDOT replaces the bridges on 16 over the train tracks and river widen the sidewalks it'll be easier still to get there from Wellington by foot/bike. And Costco is coming off a huge fiscal year, so I doubt they've got a rationale for closing locations. The HD Assembly is so crushed by traffic being the #1 location in the state for contractor pickups that they truly do need the one across the river to relieve the load. That would make little sense as those are far and away the busiest tenants there.