Instead we could send a robotic explore there in say 80 years (spending half the time speeding up to light-speed, half the time decelerating back down), with sufficient instrumentation and propultion to navigate the remote star system. It would essentially spend the majority of its time in hibernation except for the engines. I remember watching a Carl Sagan documentary where he postulated that going fast enough, you could pick up fuel on the way. Going fast enough, you run across enough lose hydrogen in deep space to build a small pressure on the front of the craft. IF you could set up some sort of collector and compressor on board, you could then use the collected hydrogen as propellant sending out the back end. This would reduce the size of the craft, so all you would need is a high-output nuclear power generator to drive the ions out for 80+ years. Once it gets there, take a bunch of pics, collect data from small daughter probes launched onto suitable surfaces, and relay that information back to earth, 40 years after arrival. Thats what a mission to one of these solar systems will look like. Were talking a 500 year span of missions by the time we can send humans.