i felt this way before when I was just using the clearomizer/tank style setups. The sub-ohm tanks werent out yet and I have yet to try out, but the main reason I went into dripping was the fact that the old tanks didnt take kindly to VG juices, and replacing coils so often was getting expensive, because I like to vape dark heavy juices (coil killers). I didnt like the idea of having to drip every 3-5 puffs (which is what I thought how often you had to drip was), but when I finally got into RDA's, I realized how wrong I was. TBH its not really 'every few drips' you have to drip unless you take those monster 10second long lung hits every single time, for me its maybe 10-20 puffs and I have to redrip and I usually take 5+sec drags. The ability to just make new wires cheaply and quickly now (for me at least) instead of having to have a stock of pre-built wires was my favorite part. Also I find it less prone to give you nasty tasting dryhits as the old style clearomizers.
I've yet to try the new sub-ohm tanks, but RDA's are definitely a much more pleasurable experience than clearomizers imo. On the convenience aspect of it all, I just build a handful of pre-made wires by myself that I can just stick into an RDA when I want it, just a bunch of premade coils I have sitting in one of my cases. Instead of having to build everytime I want to change my coil I just spent an hour or so one day and used one of those coiling tools to make like 100ft of pre-made coils for myself.
Only downside I've found to RDA's is they are not very 'portable friendly', you cant just pocket it or lay it down like you could a tank, RDA's will leak on you.