Whether or not med techs stay in the field really depends on the person! I myself am going to PA school, a friend of mine is doing graphic design but still stick with med tech on the side. Friends in college used it as a pre-med major & has been beneficial to them in med school. Others totally love it and can easily obtain masters degrees in similar fields (e.g. microbiology) and teach. Med tech is all about pathology, investigation, something new all the time. The lab environment is the same way, always challenging, stressful & relaxing, so it's never boring! But it also makes you feel good when you know you have a hand in helping make clinical decisions in diagnosis & treatment. Also, the field is secure & you can get a job anytime/anywhere. It's not really competitive at all to get into, I'm sure it varies with the programs with GPA requirements, but it's not like med or PA school. Having this background is extremely beneficial if one wants to go to med or PA school. I encourage you to look into it more, there's a 2-year program (MLT) if you haven't read about it yet, in case you want to get into it quicker than the 4-year program. There's no huge difference in pay, but in the training & education.