Getting back to the question of how expensive a wedding is, it all boils down to how much you can/want to spend. We got married in Feb last year, so let me give you an idea of what it cost us. We got married in Greyton in the Western Cape.
Wedding venue - free (cause it's my parents place)
Priest - R 600
Flowers - R 2000
Photographer - R 7500 + R 600 for accom + R 250 for food for photographer and assistant + km's (which she forgot to charge us)
Hiring - R 8500 - this included chairs, tables, glasses, plates etc
Sound guy - R 4000
Wedding dress - R 5500
Food - R 125/head - Total number of heads was 88 including my wife and I. This was for amazing food. I am happy to give you the menu if u are interested

booze - R 4000 - we had wine on the table and and 2 bottles of champagne per table (table of 8). There was no cash bar for anything stronger
Softdrinks - R 400
My clothing - R 600
Bridesmaids - R 1000
Groomsmen - got their own clothes

gifts for the guests - R 1500
So the total is: R 48950
Of course I could have forgotten something, but the main things are there. My wife's parents contributed R 40 000, so the rest came from us.
This really is a cheap wedding in terms of cost, but hopefully it will give you an idea. It was a pretty great wedding tho (I should of course think that)

We got family and friends to come and help setup and take down, made popcorn, lemonade and punch for the guests ourselves while they were waiting for us etc. The invitations were designed by a friend and we did the table seating design ourselves as well as the thank you cards. There are a lot of small things which might seem to be cheap, but all together add up quickly. In the end, a wedding is about the two of you. Make it special based on who you are and what you like. Don't get yourselves into debt to keep up with the Joneses, but rather keep it casual and light and people will talk about it for years as the most amazing day ever