Lol, when I saw this ^ response I had to laugh out loud, as it is pretty much word for word what I was thinking.
At best...you will find yourself devoting a large percentage of your tank space and maintenance time to the growing out of fry. And, IMHO, after a while this starts to become more of a chore and less of a fun pasttime.
Don't get me wrong; finding a fish species that you like and breeding it successfully is one of the most rewarding aspects of the hobby. If you keep moving on to new species all the time, it remains fulfilling for years...even for a lifetime. But when you wake up one morning and walk into your fishroom...and are struck by the realization that 3/4 of your water volume is devoted to the raising of innumerable Purple-spotted Gazork Cichlid fry and that you have grown a wee bit tired of looking at Purple-spotted Gazork Cichlids for the past few years...and that the local market for PSGC's has been saturated for a long while, so they are becoming more and more difficult to sell, and at lower and lower prices...and that there is a list of other species that you would really like to work with, but all your tank space is full...you sort of rock back on your heels and go "Hmmmm..."
And when you open your freezer and your eyes fall upon a few bags of frozen PSGC juveniles that became more valuable to you as feeders than as salesworthy livestock...but you realize that only a year or two earlier the initial discovery of that species at a club auction practically had you doing handsprings of joy...you once again go "Hmmmm..."
And when you smile and say "I just made $200!" on a bunch of PSGC fry...but it suddenly hits you that you didn't factor in the cost of heating their tanks, and changing their water, and the wear and tear on tanks and equipment that you used, and the space that you devoted to them that you might have used for something else...and that you have devalued your own time to zero worth... you realize that you sound just like the gambler who loses hundreds at the casino every day for a week, and then on the last day of his Vegas vacation he wins a few bucks and jumps up and down shouting "Hey...I WON!!!"
In short: always...
always...ALWAYS...keep on the alert for signs that the hobby is not providing the enjoyment that is supposed to provide.