Unless you ultimately plan to offer design acrylics using coloured powders etc then I think hard gel is the way to go.
Here's my reasoning..
Hard gels were once not as popular as acrylics because they were not as strong and hard wearing. However there has been so much development and now I know I can wear hard gels that perform just as well, I've 'crash tested' a few and been very impressed.
Perhaps it's just me but they seem to be the new buzz, gaining in popularity, which means there will be a demand for them. Rightly or wrongly, they are increasingly perceived to be a healthier choice by consumers. So I think doing the gel course will put you on trend.
Whichever path you take acryl-gels will be an easy side step to add to your skills set and for straightforward nail enhancements with a gel polish finish it's the new way to go for acrylic fans. I mostly did acrylics at first but the minute I started offering Polytek by Ikon.iQ all my acrylic ladies pounced on it... I rarely ever get asked for acrylics now.
The other benefit I found with Polytek compared to acrylics was the reduction in lifting in my naughty clients who drag out their infills...
Ultimately a qualification in acryl-gels is becoming a must-have, but that is the next step after you choose between gel or acrylic, then whichever you didn't choose at first, go back to it when you can.