You can buy Admiralty charts of the US in the US.
Bluewater Books sells a lot of them to yachts,
commercial vessels, and
cruise ships.
As for the cheaper US waters charts, you can get OGW print on demand that incorporate the latest NTMs for about $26.00ea. They're printed on good stock, are fairly
water resistant, and
current. Details on the NOAA charts can vary from chart to chart as opposed to the UKHO ones.
If you want
current US waters charts and aren't tied to BA/UKHO then the OGW print on demand is a good alternative. For waters outside the US, you're relegated to NIMA/DMA/NGA and they don't print on demand.
FWIW, the BA/UKHO folks are experimenting with printing on demand charts similar to the US/NOAA
concept. I'm not sure what you get with that as all BA/UKHO charts are
sold with the most current published NTMs.
At one time you could get 4
Maptech Chartkits that covered all the US West Coast for a very reasonable
price but that option's no longer available.
One option is to get some sailing charts (INT801 for example), some moderate detailed charts, and some
cruising guides. The guides give you current port info and good chartlets of the areas.
NOAA Nautical Charts, United States Pacific Coast gives you an idea of what I'm talking about, chart wise.
Once you get out of the US, you need to move to the NGA Region 2 catalog for charts other than BA. I've seen Mexican charts but they were very old and I would not trust them for other than historical or artwork. For most of those waters the BA are the most accurate although they may not be current to conditions.
http://naco.faa.gov/content/naco/cat...s/Region_2.pdf will give you the Region 2 catalog of Central and
South America.
If this is confusing, consider going further
offshore where you have French, Fijian, Australian,
New Zealand, BA, Japanese, Russian, private label (Imray, Explorer) and other nation state charts. That's where you need a spreadsheet!