A close base turns the day from a long dash into a proper break, with easier starts and a much better finish afterwards.
Tarbet works well because it keeps you close to the hill while also giving you loch views, village calm and easy access to the rest of the area.
That matters more than many guests expect. A walking trip feels better when the off-hill hours are good too.
Choosing a cottage near Arrochar lets you treat The Cobbler as part of the break, not the whole burden of it.