Still around on some online stores, and normally found in the bargin areas of stores. Worthwhile paying a few extra dollars for the expansion, "Northen Strike" as most servers now run on loops around those mixed in with the old ones (my favourite one is still Camp Gibralta).
Note: you can still play on servers running the new maps in loops, but you cant actually load it when a new one comes around. You will get kicked and have to look for an old map being played again.
Since BFBC2 came out this year the ammount of servers has halfed, and with very few full servers being seen anymore.
P.S. I can't get it to work on W7-64bit. I didn't try that hard to research any fix but you might want to look into it if you have W7. Works on my Vista though.
Strange...mine works fine? Somethings are best left unknown.