I share the same views of Imranfat.Imagine for close to 19 centuries Euclidean geometry ruled the roost, just a plus minus change at the proper place opened the door to a new world so similar and yet so different and captivatingly beautiful. In the new order there being a teasing familiar part, an unknown part that demands your intellectual attention holding out a hope for new research.
There is not one but a host of novelties out there.The validity and further scope even over and above the three models awaiting new approaches or developments. The refreshingly new definitions of line intersection and parallels that remove a straight line and plug in curved lines in place with fully recognizable validity..All trigonometric functions can be transformed into hyperbolic functions. Triangles with angle excess getting into deficit.
Even its history is interesting.The big Gauss kept it to himself for a long time until its reality had to surface, its discovery and frustrations by Bolyai, Riemann's made distinction between the infinite and the indefinite, Gauss's spontaneous cry of joy after his Dissertation, Beltrami's solid work leading to its firm footing, his paper-mache molded model with saddle points..even today Daina Tamania's crocheting on display at the Smithsonian etc. etc..
Difficult to answer what job opportunities and what extra $ comes out of it, but a concern for any avenue that science takes you through is good. Just wroting in extempore..
Gauss Egregium theorem. You squeeze a hemisphere to see all three type of shapes and even a fourth one a non-symmetrical shape like a huge grain of wheat without rotational symmetry. A curved line on a cone is still straight when opened out flat can be relevant to warped surfaces.. A beautiful mind that sees any surface isometrically embeddable into possible deeper dimension far beyond a geometry what meets the eye, the hyperbolic geometry's unmistable part.