Problems cause a lot of work and cost money. It's not as much fun when you are under the car more than you are in the car!
I have kept going, through some difficult times. But I did question if I was getting too old? If all this work and money are worth it? I kept going and had some success so it was worth it!
A lot of guys have problems with SB oiling. Maybe a mild BB would be cheaper to get the same performance level?