Fronts seldom wear out in the life of a bicycle, per se, but they do age, harden and eventually delaminate. This said, rotate-on-replacement of the rear, so that your new tire is your steering tire, and your aging tire is your drive tire (that will be consumed). Schwalbe is right on for tire-mileage, on premiums - but a lot of your 'no-name cheap imports' have tire life measured in hundreds of miles, not thousands, so be aware, that Schwalbe-Michelin-Continental-Panaracer price is justified! Decent mid-range name brand tire is good for 1,500-2,500 miles, road miles, with things like road quality, weather (wet roads wear a tire more, actually, due to slippage), biker weight, and riding style (no MTBs can realistically be estimated).
On a 'desert note' (where the thorns called 'goatheads' roam freely, also be aware that while you can add rhinoliners, tube sealant, thorn tubes, kevlar tires, eventually you are going to 'get-got'. While a small thorn is not life-ending to a tire, to prevent later fiber separation within the tire's belt, it is VERY wise to find the hole and use either rubber cement or super glue to 'fill' the thorn hole - to hold the hole closed. It is NOT for sealing air, but to help restore some integrity to the tire's structure after a thorn pierces it...rider's decision here, but I've never had a 'fiber separation failure', while I've had tubes that come out at tire-change, that literally had HUNDREDS of little green dots on them! (where Slime had filled a 'goathead' thorn hole location).