Ah, a pity you didn't hatch a few of your 10km eggs during the Eggstravaganza - you might've had double candy on a cool hatch (Dratini etc).
I'd walk the 5km eggs for now. If there's ever an extra-candy event, hatch the 10km eggs. If there's an event that gives special eggs (like the Windy period), hatch the 2km eggs to quickly make more room to pick up more of those special eggs.
