High quality used staff golf bags by manufactures like Ping, Callaway, Nike, Mizuno and many others are widely available.  Purchasing a used staff golf bag will prevent you from paying expensive pro shop prices.
Yonex Staff Bag, Never Used!

Yonex Staff Bag, Never Used!

Price: $76.01 (7 Bids)
KZG Staff Golf Bag New Never Used

KZG Staff Golf Bag New Never Used

Price: $66.00 (5 Bids)
30 MINT NEAR MINT WILSON STAFF USED GOLF BALLS

30 MINT NEAR MINT WILSON STAFF USED GOLF BALLS

Price: $9.95
Buy It Now: $12.95
Used Wilson Staff Tw9 Satin Wedge Golf Club 54 10

Used Wilson Staff Tw9 Satin Wedge Golf Club 54 10

Price: $9.99 (1 Bids)
Used Wilson Staff Tw9 Satin Wedge Golf Club 56 12

Used Wilson Staff Tw9 Satin Wedge Golf Club 56 12

Price: $9.99 (0 Bids)
Callaway Cart Staff Bag (used in Very Good Condition)

Callaway Cart Staff Bag (used in Very Good Condition)

Price: $60.00 (0 Bids)
Used Ben Hogan staff Golf bag Good condition

Used Ben Hogan staff Golf bag Good condition

Price: $24.99 (0 Bids)
Wilson Staff Gooseneck Golf Irons 3-P Lightly Used

Wilson Staff Gooseneck Golf Irons 3-P Lightly Used

Buy It Now: $138.99
Used Vintage Wilson Staff 345 8813 Putter

Used Vintage Wilson Staff 345 8813 Putter

Price: $27.89 (3 Bids)
Crown Royal Burton Staff Golf Bag very lightly used

Crown Royal Burton Staff Golf Bag very lightly used

Price: $49.99
Buy It Now: $79.99
Wilson Staff IP53 Sand wedge Golf Club Used

Wilson Staff IP53 Sand wedge Golf Club Used

Buy It Now: $6.99
Titleist Black And White 35" Tall Staff Golf Bag Used

Titleist Black And White 35" Tall Staff Golf Bag Used

Buy It Now: $230.00
USED WILSON STAFF FAT SHAFT FS IRONS 3-PW STEEL REGULAR

USED WILSON STAFF FAT SHAFT FS IRONS 3-PW STEEL REGULAR

Buy It Now: $139.99