The sport of bowling has changed so much, you don't need to be there for 20 years to see the changes. Even five years can get you far ahead of the curve. Many bowlers are lost, even though they have never taken a break. Bowlers making the transition from open leagues to more challenging oil patterns will find this especially true.
This may be something that many younger bowlers don't know, but there are far more ex-competitive bowlers than current competitors. It is good news for bowling that so many people are returning to play the sport at their nearest bowling center.
The south side of bowling seems to be growing, too. Also, the number of colleges offering scholarships for bowling is increasing. At least two colleges are currently adding bowling teams. You can get more information if you'd like to know more about these programs on the internet. You will also get the contact information on their websites for more queries.
The returning bowlers purchase new equipment as their old balls won't work anymore. We used to believe that long spans, a lot of reverse pitch in the thumbhole, and very loose thumbholes were the key to success. These bowlers have found better ways to do things than we used to.
Nobody wants to spend too much time looking at bowling balls because there is so much information online. It is not recommended that you purchase six bowling balls to make a big comeback to the sport.