One thing I learned is that there are things in life you shouldn't be cheap about, and one of them is most definitely a smartphone. You're buying a device you'll be using every day, likely pulling it up for few seconds every little while. You definitely
don't want to have a smartphone that looks like crap, hangs up all the time and in the end won't let you do half of the things it was supposed to do. This would be introducing an incredibly big source of frustrations into your daily routine. I wouldn't be surprised if additional psychiatrist bill would be bigger than money saved on the phone.
I was stuck for three years with a crapphone (LG P150) that was too weak to lift its own operating system (Android). After those three years of torture (and using it only for calls and text messages, as turning on Internet would max out the processing power and memory and would require taking out the battery) I can say such phones should not be allowed on the market. Especially not pushed by telecoms on contracts. It's especially sad to look at people who get burned by this when buying their first smartphones. It's basically a story of shattered dreams. It's just evil.
So folks, either buy a dumbphone (if all you need is text and calls), or shell out for some decent tech. Buy that Nexus or S4. It's worth the money.