I needed a new set of NiMh AA batteries for my MX700 and it seemed onecall.com were the only folks online that had them in the 1500-2000mah range. A pack of four came out to about $8 and change shipped. The package arrived via USPS priority in four days after I placed the order.
That's all pretty regular stuff from a retailer, but this afternoon I received a phone call from Kent at onecall.com. He just wanted to make sure my pack of batteries arrived safe and sound and if I needed anything else. I kind of got caught by surprise since it was such a small purchase, I didn't think they'd follow up on it like this.
Anyhow, nice folks and a nice place to shop.