CurrentExempt -
In the end, you are going to have to decide between doing what you love, and making some money. Unless you have a fantastic year on tour and can be one of the top 15, you are likley looking at a meager income.
As Jeff Carter said, is there a way you can supplement your income while on tour, or in the summer months?
Sadly, bowling is no longer a prominent spectator sport in this country. Hence, the tournament payouts and sponsorship is not where it once was (or should be). Are you doing better than similarly ranked professionals in other 2nd and 3rd tier sports (snowboarding, swimming, mountain biking, etc.)?
Look at it another way. With the exception of the money, you seem to like what being a professional bowler has to offer. Ask yourself: Is your career as a pro bowler putting a strain on your relationship or family? Is it really just the money, or is there more to the issue? If it's just the money, I'd say enjoy it while you can. Not many people will have the chance that you have right now. If there are additional problems with your touring (lack of contact with loved ones, missing your kids childhood, etc.), then you have to make a much more difficult decision. I would consult those people that mean the most to you (spouse, family, kids, close friends), and get their input and opinions.
I envy your position (as an exempt professional bowler), but not the crucial career decision you seem to be facing. Good luck, and I hope this discussion helps!
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Dan
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Engineering * Bowling = a fun and practical application of rotational kinematics.
Bowling Nerd Herd (TM) Member