MES is not a permanent smoker. I own one. But to get an electric smoker that you'll know will last a long time, be ready to break out that check book.
Personally I think with my prior education with smokers that I will most probably build one of my own. Its not brain surgery, and there is nothing but help here on the boards. I have the guy on TV smoke in a cardboard box, I have seen my Dad for fun smoked sausage in a clothes dryer shell once, Pop had a huge TeePee smoker that was homemade. Seriously after looking at Pop's smokehouse he built and Q-viewed here on SMF, it doesn't get any better than that. Well you can always go brick I guess.....
If you want electric, get that brinkmann conversation kit, then find you some sort of container.I just looked up and the TV armoire would make a great smoker with a little insulation. LOL.... you can use anything. I am thinking though either Wes's big brick or Pops smoke house would top my list. But you'd have to convert to electric and it would really take away from the smoker.
Buy a conversion, build one that fits you!
You realize my smoker will know of all this negativity I have just spouted, I fear that tomorrow's jerky will now suffer....... <sighs>