No, I don't have a number on that. We're just kind of -- what do you want to call it, stumbling into it. One of the nice things about -- I'll pick on Ford, they simply have got this internal combustion engine dialed in. It's not the engine that you and I knew about in high school. This thing is a finely designed engine. You don't replace rings and valves. It just doesn't happen. These motors run, run, run, run. They're beautifully made. They're very fuel efficient. So we've got some savings from that, which now, of course, they're making us give back basically, okay? But the vehicles we bought 4 years ago were pretty much at this level. And we -- and Ford is criticized on quality a lot in the press. And of course, they're not perfect, but having dealt with them for 40 years, they got a considerably better quality product now than they sold us 20 years ago. And so we enjoy that. That impacts a little bit. Would you repower it or do these sort of things? Before, you could see, you did a lot of repowering at 80,000 miles. Right now, we're going to see 140,000 miles and more. We'll have the occasional engine hand grenade, but no, they are not -- they don't -- they're not wearing out. The day of putting in valves and rings and just go on, it doesn't happen. You don't put in bearings. It just -- it doesn't happen. These motors are well built. Well, you can see it with oil, it drips out. They just don't drip oil. It used to be every place we had, we had oil puddles everywhere, because the motor leaked. Well, the motors don't leak today, they're just so -- they've got this manufacturing of the internal combustion engine just as close to perfect as I could even imagine. It's a beautiful operation, and so the vehicle runs. So the van boxes, we do some reuse of van boxes. We have a whole program there. We try to -- we consider the truck has 3 lives, first live is in our One-Way fleet, second live is in our in-town fleet in the third life could be anything from we turn it into a storage room to we sell it to a plumber and that person carries on for 10 more years with a truck visiting your home and fixing your plumbing. So there's -- we're keenly aware of these different alternatives, and we try to do them to optimize this, but it's far from a calculation. It's not a, I've got a model that just says, okay, to you today, we start doing x. No, it's not that clear at all.