Custom Fit or Off the Shelf Golf Clubs?

I am considering buying a complete new set of golf clubs. My question is should I buy off the shelf or get a custom fitting from my club pro and buy from him at the pro shop?

You didn’t indicate your experience level, so I will answer this question with my standard recommendations for golf club purchases.
New Golfers ( 0 experience to 2 years/Average score 95 to 105+)—Whether this is your first or second set of clubs, I recommend a used set of name brand, but off the shelf clubs. You can find these at retail stores like Play It Again Sports, on Ebay, or at online sites like callawaypreowned.com or golfbidder.co.uk. And by the way, Callaway Pre-Owned also sells other brands that they received in trade-ins. There are many places you can find used brand name clubs, but my key point is this: If you are going to be playing a lot of golf, don’t scrimp and pay $85 at the Wal-Mart. You can find a good set of clubs, many times for between $200 and $600 for an entire set (which can be for a set that costs between $1,000 and $1,600 new). You don’t want to spend too much money at this point, but a set of quality clubs can help make you feel more comfortable over the ball. Contrary to what some will tell you (especially your spouse), I believe that the clubs can make this difference and that translates into a better golf swing.
Experienced Golfers (Average score 85 to 95)—This is usually when I recommend golfers step up to a custom fitted set of quality clubs. Whether you buy these from a retailer who fits you or your local pro many times is simply a matter of whether you have a relationship with the pro at your local club. If you do, many times they can come pretty close to what you pay at local golf warehouses and you get huge brownie points for the purchase. This can translate into better deals on lessons and/or other merchandise. If you don’t belong to a club or have a relationship with the pro, many of the bigger golf stores now have great places to hit the clubs right in the store and/or may have loaners that you can take to try on the course. The key here is to take your time and get it right. This is one of the bigger investments you will have made in your game to this point and, again, the right clubs make all the difference in allowing you to relax (at least as much as can while playing this crazy game). Don’t be in a hurry, the worst thing that can happen is that the clubs are put on sale!
Lower Handicap Golfers ( Average score below 85)—The truth is you know what you want in a set of golf clubs and don’t need advice from me on this!