I have been vaping over four years now. A mechanical mod has many advantages. For one they last. All the other devices I have owned have either died or I didn't care for them enough to keep longer than a week. With a mechanical mod you simply pick your ohms and no you don't have to get crazy and go super low either. I find anything under 1.5 to be disgusting and 1.8 on a 3.7volt battery to be perfect. Buy good protected batteries like and a cheap clone mod and it's not that expensive. If you are worried about staying in budget I would suggest the K100 from fast tech, with 2600mah sanyo protected batteries and a decent charger. It doesn't have to be an expensive one to be a good one. A vivi nova with 1.8ohm heads is also nice if you don't already have something similar. If you have a little extra buy the panasonic 3400 protected batteries. Although either set is leaps and bounds above most batteries because most batteries are not even close to the mAh that they claim they are. Stay away from all $##$fire batteries because they are mostly junk and not even close to the value of the Sanyo 2600's. Never believe the claims on any of the trustfire/ultafire batteries. They sell plastic wrappers so you never know what is under them. The Sanyo 2600's are the best bang for your buck and should last all day and night anyway. This is a setup that should last you for years and give a consistently good vape all the time. Also you can run it over with your car and it will keep working. Drop in in the mud or snow, no problem. Throw it at a tree if you want, you will hurt the tank but not the mod. Also batteries last longer per mAh in mechanical mods because no energy is wasted on the electronics.
Dependable, long lasting, durable, consistent and affordable too. It's not like 4 years ago when the only good 18650 mods set you back a hundred bucks just for the mod.