Everyone does at some point.  That's what I like about photography.  I started chasing wildlife and did nothing else forever.  My first big change came when my nephew started playing sports.  It's also when photography got really expensive for me.  At least here local high schools play Friday nights and the stadium lights at the school were less than adequate with good equipment.  My first outing  was not what I had hoped for with the low light and ISO capabilities my first outing humbled me.  On Monday morning I made my first large purchase, Nikon 400 MM F2.8 lens.  The photos were to say the least night and day in quality of focus and getting more keepers.  The D200 would soon fall to another.  Yes another call to the favorite camera store and a D3 showed up.  I have been doing this more than a few years so I can say that I show up, set the shutter to 1/400, F2.8, and ISO 6400, continuous focus and follow the ball.   I like shooting sports.  You never know what is going to happen.  It's not like shooting people who you have to pose.  It just kind of happens.  You will do better in the right position and understanding how the sport flows.  Another advantage of the sport venues is it starts at a certain time and pretty much runs for a certain time and then ends for the day.  Wildlife is unpredictable and you may not get anything on any given day.  When a person says it's not the camera it's the photographer they are partially correct.  HOWEVER, there are times when you need special tools of the trade.  For night sports a good camera with high ISO because shutter speed needs to be at stopping speed and a lens with a wide F stop to gather the light and help with fast focus. If possible lighting up the subject if allowed.  Anytime there is  low light you need to rethink. Do you want the photo to look like it is daylight or capture all the glowing lights.  Landscape low light photography will teach you a lot  about shutter speed, ISO, and F stops.  Some of the specialty things will be a tripod, shutter release, flash light and maybe a timer.  Now is when you may need what you have learned about manual settings.  Most camera and lens will work so you don't need to have something expensive but you will need patience.

I didn't give up wildlife I just added sports and pretty close to the 10,000 clicks.