If you have the opportunity, go for it. Save your $$$, bowl the pro-am and if you feel as though you could compete on the shot, put in your cash and bowl it. You will gain experience, get a lot of help from other pro's (during the pro am) I am sure and an idea of what it would be like to bowl with the "big boys". I have thought about bowling some regionals around here, but either dont have the time or the money (one or the other comes up). Thinking about bowling at least 1 this fall though, for the same reasons, to get the experience and knowledge. I am sure with me, I would probably miss the cut, but I could say I bowled one at least. If the cash flow isnt going too well, see if you can get someone to sponsor you (pro shop, bowling alley, parents...). Go for it.
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If I could only pick up a 7 pin.....