I never had or wanted a white-with-red PV, and since I heard, when I researched PVs about a year ago, that it should never, ever "look like a cigarette", I chose a cigar (701). Let's just say, bad idea. Then I got a 510 (not in white) and surprise! I was off analogs within two days, and I hadn't even intended to quite completely. The only other option back then were mods, and thank you very much, but I didn't want one. (I still only own a very simple battery box mod for testing.) And neihter 801s nor 901s did it for me, although by now, I very occasionally enjoy both.
I was, however, very glad when the eGo came out, because a standard 510 battery lasted me about 45-60 minutes, and that was annoying. For a day out, that equaled a TP plus several spare batteries, which wasn't exactly convenient. These days, a day out means one spare eGo (with a different flavour, too) and two 3ml-bottles. Now that is convenient.