I am firmly in the "I'M AGIN' IT" camp on this issue.
I certainly believe it would be nice for Tesla Motors to reduce their financial exposure to Supercharger expansion by partnering with companies that already have a presence in the wide open spaces across the United States, Canada, and Mexico. It is something that could lead to a very beneficial relationship that could grow well into the future. Fact of the matter is that most gas stations in the US make their real profits from sales of beer, tobacco, and convenience items, in addition to the irradiated 'food' products they keep under infrared lamps. The fuel they offer for vehicles is something that Travel Centers of America, Love's, or SHEETZ could possibly be agnostic over. Electricity would be less expensive to provide, and having long range EV Customers that lounge on site a bit longer than ICE drivers may help the bottom line, especially at truck stops.
But...
As others have noted, I would prefer that I didn't have to experience the oil slicks, grime, and fumes that accompany gas stations and truck stops. Those locations would certainly continue to support ICE vehicles for some time to come. I'd rather there were separate locations that catered specifically to electric vehicle travelers -- people using Tesla Motors products.
I imagine these as either Tesla Waypoint locations, with 16-to-20 Supercharger stalls... Or Tesla Depot locations, with 24-to-36 Supercharger stalls. Either way, they would be perhaps every 450-to-600 miles apart along major East/West routes across the US. Each location would have a Tesla Store/Gallery, Service Center, Lounge, Lavatories, WiFi, Food Court, and Convenience items on hand. I figure about 24-to-36 locations would do the trick, at least to start. These would be placed in addition to regular Supercharger locations of 4, 8, or 12 stalls. I figure that as time passed, and battery technology improved range, it would be less necessary to add intermediate Supercharger locations, or expand existing ones. I would love to see sites of this sort begin to appear in 2017, ahead of the Model ☰ launch. Preferably, the restaurants they would partner with would be those that offer Coca-Cola beverages, instead of the PepsiCo variety. And, I'd prefer there weren't any alcohol or tobacco sales either.