[seymour333]

A few years ago I made the decision to go back to school (for two years) to be a web dev. It cost me approximately $25k. Immediately after graduation I added $25k to my yearly income. There is a ton of work for web developers, and there will continue to be for some time (even if something comes along that makes web devs redundant, there is still decades of maintenance work in the market).

It may be important to clarify exactly what you mean by web developer though. I work in many different portions of the web stack every day (database, server side code, front-end code, etc). The more diverse your skill set, the more opportunity there will be.

At any rate, web is a really good entry point, and after a few years in industry you'll probably start to see different branches of development that appeal to you more. If you start out as a web dev there will always be different avenues and opportunities as your career advances.