It has nothing to do with being tight Nosmo_King, not everyone can afford to pay that much for green fees, luckily you can.
Golfers on a lower budget will have to go somewhere else, making golf in Bulgaria an elitist sport.
Bulgaria is a very long way behind Turkey, which is a far more attractive new golf destination with a large choice of Golf Courses for all budgets.
I agree that Blacksearama, The Lighthouse and The Pirin Resort are good courses but they cost more than 50 to 70 Euro to play, more like 60 to 100 Euros on weekdays. I haven't played the Blacksearama or Lighthouse but I have played the Pirin a few times and for 60 Euros I would agree that it is good value.The facilities there are of a very good standard.
I have also played Ihtiman,Sliven and St Sofia and they're no better than an average public course in the U.K. but the price to play these are between 25 and 30 Euro a round. As you can see below, for the same price you can play at Gullane and The Celtic Manor .
You mention Gullane, a well established World Class golf destination that is used for the Open Championship qualifying rounds.It has 3 golf courses and for £50 you can play the 2 and 3 Courses in a day, 2 rounds of golf on good courses.
At The Celtic Manor you can either play the 2010 Course(Welsh Open & Ryder Cup) for £175 or you can play on the Roman Road (£36) or The Montgomorie (£25).These are World Class resorts with a choice for golfers with various budgets.
Within 50kms of both these British resorts, golfers have the option of playing on a number of other golf course of varying prices and of good quality, this is why the U.K is a World Class Golf destination.
The fact is that Bulgaria has a couple of quality Golf Courses but not everybody can afford to play on these. Currently Bulgaria is not yet a World Class Golf destination, it's a Country with a few nice courses and a few bad ones. A Golf Tourist has many far better destinations to chose from