I think there's a place for both mechanical and electronic mods. It's like anything - vehicles, boats, guns - you choose it for the job it'll do and/or how you feel about it. A farm tractor and a Ferrari are both useful, depending; a simple sailboat or a carbon kevlar raceboat both do the job but you know which one will still be around and in good working order in 20 years; most revolvers beat any auto ever made if the test is dropping onto concrete and dragging it through muddy water then expecting it to fire when needed.
I used to work in a gun workshop back in the 70s, we only made captive bolt guns (for abattoirs) and 20mm cannons, kind of a strange mixture. The bolt guns took the worst beating of any equipment I have ever seen in a lifetime of engineering: they'd come back for servicing in an unbelievable state. Some had a half-inch coating of matted blood and hair and were part-jammed although they still sorta worked; some had big score marks where they'd been dragged along the concrete floor with a lot of weight on them, and were bent to hell...
You put them in a bucket of disinfectant and detergent overnight... Then attacked them with a Mole wrench in the morning. Scrub up the bronze and stainless steel, maybe ream some distorted internal diameters out, fit some new parts - and they were good to go, ready for another few months of massive abuse. Only stainless steel and bronze can take that punishment, ali would be finished in 24 hours. There is always a place for a mechanical device made from stainless, bronze and cupronickel, and it will last for ever. Your lifetime, for sure.
The other approach is to make it with all the bells and whistles, with an electronics package. But the devil is in the details with these - some last, some don't. Until e-cigs come with a fully-encapsulated, plug-in, no servicing required, user replaceable electronics package, they can't be considered as (ultimately) reliable as an agriculturally-built mechanical ecig.
I like electronics as much as the next guy but there are still a bunch of myths about this stuff. Take solid state drives for example: they look like a really good replacement for server hard drives, on paper. This is the service requirement for a server hard drive:
- server disks have the toughest life in computers, they are hammered 24/7 - so they must be reliable
- must have fast data retrieval, therefore 15,000 rpm disks are best (disks come in 7,200, 10,000, or 15,000 rpm)
- should have a long, problem-free service life
- should be easily-replaceable, plug-in changeout
- should have large capacity
- ideally as cheap as possible
So, large 15,000 rpm disks are what most dedicated servers use as they are the best option: fast, big, easy changeout, and they last longer than you might think.
Along came solid state disks: all-electronic, no moving parts, the fastest data retrieval of all. Good choice for servers then?
No - they break down faster than even the fastest hard drives. After a few months the fault levels on an SS are so high it has to be scrapped. Large-scale hosts with a lot of data on disk life will tell you that, contrary to all logic, SS disks are the least reliable of all. They don't recommend them unless you need ultimate speed, don't mind the small capacity, and are willing to pay a premium price for a new one every six months. You can't beat the old mechanical ones, at this moment in time anyway.
If you want peace of mind, you just can't beat stainless steel / bronze / cupronickel. If you want all the whizzo tricks then electronics is the kiddy. But unless you're very lucky you'll need a spare. And stay away from water or anything that can zap them, static being the best example - the big, fat spark you sometimes see in a static electricity discharge has 20,000 volts behind it, and a lot less than that will kill electronics. Also anything with an amplifier chip in it, and switched on, can get zapped by a mobile phone.