Hydroponics is a very specialized way of growing, requiring very precise monitoring and fertigation which is generally not possibe for amateurs and small time growers. Further, it is not easy to adapt the existing structures to different crop types. I have been into supply of inputs for hi-tech agriculture for over 27 years and would not recommend hydroponics on small scale, specially to first time growers.
I also agree with the fact that hydroponics can also be a hazard in the hands of the inexperienced as it is based entirely on chemical inputs.
An easier way out is growing in open top bags. More experienced can opt or soil less cultivation ( cocopeat/other ediums) in open top bags.