There are easy to keep SPS.. pretty much bulletproof... like montipora & porites.
Well, in fact SPS can be easy to keep... IF you invest in good equipment and improve your husbandry skills to make the best environment for them!
Too many reefers fail because their tank conditions are not right... and there are so many factors to adjust... and coupled with impatience, lack of funds, or understanding of what's required.... they compromise and 'try try'.... and fail.
You can keep SPS adequately but the end goal is to make them grow and color up nicely and not just keep brown SPS corals... that is the enormous challenge.... financially because more often than not... you need a very good skimmer, coupled with strong lights/bigger chiller, strong water circulation, calcium reactor, etc etc. to make this goal happen.
Don't go into it if you can't afford it.
Don't start what you can't finish.