If you've spent more than five minutes in Thailand, you will almost certainly have encountered the 'not enough sockets' scenario. So, everyone buys power strips (power bars, or whatever you call them from wherever you're from). The standard they are manufactured to is invariably mediocre to poor. In 13 years I've never found a good quality one. Even the 'better' ones still have flaws. For example, I've been using a reasonably well made one for the last couple of years, I can't remember where I picked it up from but it has surge protection and a ground fault indicator that actually works but the problem with it is the switches. They're nowhere near capable of carrying the rated current, so if you plug something in that draws more than a few amps the switch fails, or worse something in the switch starts to melt. It's effectively a garbage product. A few months ago I actually had one catch fire. Examining the remainder of the power strip the problem was clear, the cable was just a few strands of copper thick. Cheap, crap power strips are everywhere in Thailand. Most of them have three pin plugs, but are only wired for live and neutral i.e. the ground pin is just there for decoration. Dangerous, garbage. FINALLY I found a source of power strips I'm happy with but it's from an unexpected source. I've been fitting 19 inch equipment racks in recent months. Obviously the equipment that goes into them needs mains power. I've been using the Germany Rack company in Thailand for this stuff. The power strips that are designed to go into them are made to enterprise/industrial standards, but can easily be used in a domestic environment. The cables they're made with are heavy gauge (I've cut the cable on one of them to verify the copper thickness used), and the casing is grounded galvanised sheet steel. Really excellent build quality and they even have basic surge protection built in. My only gripe with it is the sockets aren't shuttered, but here's my recommendation for best power strip in Thailand! . . . http://www.germanyrack.com/product/print-107.html They're actually very good value for money too, and cheaper than some of the plastic garbage being sold in the supermarkets. The six socket version is only around 1000 Baht.
It'll be Spain for me, probably one of the Canary Islands. They have a great climate, the cost of living is pretty low, it has good medical facilities and the culture is fantastic. It's also a quick hop back to the Motherland and the family that I presume will still be there. The language also doesn't seem to be to ridiculously difficult to get a grasp of. In all reality I'll it will be at least 20 years until I retire, so perhaps my perspective will have changed by then.
This could offer you significant leverage in Thailand (or any country professional teachers of English are in demand). If suitably qualified and experienced, there are a number of international schools in the larger Thai cities that aren't interested in hiring some useless backpacker, but ARE interested in hiring skilled professionals.
Don't be like that. Nearly everyone here would have given you the same answer, and for good reason. We can speculate and make general assumptions all day long. Provide more information. As a general response, I wouldn't want to live in Thailand (as a single man that doesn't smoke or drink) with less than $1500 USD/month. I could live there for less than $500/month if I was only concerned about survival. If your wife is truly qualified (has a bachelor's degree or better), she can earn at least 30,000 THB/month, depending on where you live. That is easily enough to cover rent/utilities (for someone like me). Food can be had quite cheaply if you don't mind eating like the locals do everyday. There are so many unknowns that may need to be considered.