Absolutely there are certain balls that are in the category of worth paying more as much as (if not more than) $250. Those that are usually paying that much are going to make that back in a very short period of time. As Bob Hylka noted in another thread, there are many occasions where older, more mellow works really well...even better than drilling the guts out of a newer ball.
Does that mean that same ball is worth $250 to every bowler? No way. The balls that fetch the higher amounts have characteristics not not every bowler can maximize. But do not criticize those that feel it is a wise expenditure. Let's face it, there are pros from both tours that have certain balls no longer in production that they try to stockpile for a reason, and they will pursue certain equipment with a vengeance.