My progression time-line:
August 2011] fuma (cig alike, 808 something-or-other POS), prefilled cartomizers
August- September 2011] Go-go, blank cartomizers and carto
tanks, a couple of clearos (didn't like clearos I tried),
juice refills, DIY
juice
? 2012] Vmod-XL, atomizers and cartomizers (didn't like, sold it)
January- June 2012] provari, mostly carto tanks, vivi nova (don't love it), protank (pretty nice, but still prefer carto tanks)
April 2013] Vamo, mostly carto tanks
July 2013] learned to rebuild protank coils and love that vape so far, these are growing on me.
July 2013] bought a AGA rba and a terminator tt, but haven't attempted to build either yet.
Dates are approximate, lol.