Have to share my experience with this. After a year or so of trying to battle my roll-up addiction using snuff and, to a lesser extent, snus, I've found my Holy Grail. It's an Innoken iTaste MVP 2.0. It's what they call a box MOD:
It cost me £39.99 from a site called myepack and it has blown away the competition. It's variable voltage and wattage so you can fine tune it and the battery lasts for 2-3 days. I used to smoke Van Nelle Zware Shag from Holland, 'the widower' as the Dutch call it. It's strong shit and even the strongest snuffs couldn't get me off them...until now!
Also now I notice when I do use snuff I get a buzz from it, even the 'normal' snuffs like Toque Toffee that I'm now tooting...
Don't knock vaping until you've tried it and it harmonises perfectly with the occasional nose full of snuff :)