No its a bit backward here..
The standard 510 atty.......meaning it's NOT a carto filled with fluff. Is not rebuildable and it's perfectly fine to drip into thats where it started.
like this Black 2.0 Ohm Dual Coil Atomizer
Nothing wrong with them and many many of us used them for years, I still have plenty of and keep them around ...the rebuildable thing is kinda new really(least in real time not ecig time)
I dont think you should be afraid of trying RBA's but the back up of a it's ready atty isnt a bad thing either.