Seeing as there is like no evidence that BE won't be something other than what it appears to be, I see no reason to wait. For all the titles people mention, the signs were there. The moment it was announced Simcity was online only, you should have turned and ran. There was sign after sign leading up to the release of Diablo 3 (a title I DID get, but I kind of had to even though I knew it was going to be bad). Same with DA2, Duke Nukem, etc. etc.
My point here is as long as you don't let hype blind you, it is fairly obvious what you are getting. In the case of BE, all signs point to it being exactly what it claims to be: A sci-fi spin-off of Civ 5. Those with gripes against Civ 5 will likely have many of the same gripes (e.g., 1UPT) and those who are fans of Civ 5 will likely enjoy it.
I understand the paranoia in regards to the numerous terrible titles in the last few years, but it isn't like the signs weren't there...