I've noticed something about certain areas and wanted to get the HF Underground group's stories on this. That is, up and down the Eastern Seaboard of the USA, at least along Interstate 95, each area seems to have a "home channel" with larger areas (read: cities) having several home channels.
For example, driving up I-95 from Richmond, I notice channels 1, 7, 14, 22, 33 and 38 LSB are the "home channels" for the Richmond area, along with at least two out-of-band frequencies (one for AM, one for SSB - I'm not going to mention the frequencies - at least not yet

). As I drive north, the local channel about 20-30 miles up 95 is suddenly channel 35, then once I'm in Fredericksburg its both 31 and 35 (and possibly others). Near Washington, D.C. and Baltimore, the local channel (at least for SSB) appears to alternate between 38 LSB, 39 LSB, and freeband frequencies above channel 40 - 27.425 LSB, and 27.435 LSB (I'm sure there was/are in-band AM channels too). There are also several base stations located near the 95/495 (Washington Beltway) interchanges that operate on channel 19, sometimes as their own personal chat channel - often talking over the trucker chatter since they run power and have base station antennas. I don't really consider 19 to be a "town channel" though.
I know the further south you go the more popular CB becomes, which supports the "home channel" or "town channel" thing. I know they are a throwback to the old 23-channel CB days back when you had to have a license and certain channels were designated intra-license and inter-license (i.e., some channels are for users under the same license to use while others are for users talking to people operating under difference licenses, with channel 9 as the emergency channel, 10 as the original road or trucker channel (soon changed to 19) and 11 as the "calling" channel.
Given the popularity of radios that can operate out of band, one of the most popular SSB frequencies around here is actually above 27.405 MHz. The AM guys that hang out on channel 14 also have at least two out of band AM frequencies that they like to use as a "private" channel.
So my question to HFU is, does your area still have "town" channels? How often are they used? Or do the AM guys just hang out on 19 and the SSB guys hang out on 38?