Too many johnny come lately player fans who need to go and follow another sport.
DC is magical, mystical and a part of tennis romance.
And there are many posts that I agree with in this thread, but this pretty much highlights all of them.
I can understand that people from bigger tennis countries don't care that much about Davis cup, but, for example, for Latvia it is the only chance to see Gulbis playing in our country. We are hosting only one futures event within a whole year, and Davis Cup is the only way we can see our best player and also some of other better known players, who come to Latvia for DC ties. I think that I started following Latvia's DC ties since I was 10 years old, I am always trying to watch them in the stadium, and those DC weekends are very special for me. Latvia will now play Finland in September for advancing to group 1, and I can hardly wait when that tie starts.
Not only this, probably, the DC weekends are those, when I watch the most tennis. Well, maybe except Grand Slams. This weekend, starting from Friday, I spent at home watching different ties on livestream (Kazakhstan - Czech Rep., Bulgaria - Estonia, Great Britain - Russia, Bosnia - Moldova, Poland - South Africa, USA - Serbia, etc). It is just great to see players playing for their country, emotions, drama, different doubles pairing, dealing with the home fans, etc.
In short words, Davis Cup is awesome, and I hope it will never change its format.