Are you trying to suggest that if I fly budget airline, there's no guarantee I'm arrive at my destination? or get lousy food at foodcourt? This argument is so lame.
If you still don't know. It's exactly what you mentioned for the airlines, you pay SIA for the assurance that they do not buy 2nd hand aircrafts, thus more reliable planes. You pay extra for SIA to keep the fleet well maintained and they are trying very hard to keep their records clean. If you have tried some of the budget airlines that engine died while you are boarding it... :sweat:
It's the same, if you want to risk that 1 in a million chance, it's your risk. Furthermore, it always adviceable to have travel insurance coverage.
For foodcourts, it's self service compared to being waited upon in hotel's resturants. Similarly, you have to self service should photographer cannot make it, but hand you his/her professional cam.

Cuz in foodcourts the owner simply just dun open stall lah, hotels cannot do the same right?
Also for foodcourts, you have to try first lah. Not all have same quality, not nice you can order again or go other foodcourts. AD wedding not nice can do again?
I can appreciate the cost of running a business. Value of service.
If a photographer quote me $888 for my AD and include a coffee table book and 300 4R and album. I think it's pretty standard out there in the market, thou I like another guy who quote me $1388. Looking at their portfolio, both have very good work, same offerings and hard to tell who's better. Im happier saving $500, and I expect him to turn up on my big day, if otherwise, I would not have engage him or be bother with fine prints that suggest otherwise. Any contract that suggest that for this lower price, do expect substandard service and lower quality? Think about it.
If anyone charges you below cost, then that fella isn't a business in the first place. Do you think that you can trust them to have proper contingency plans thought through and the risk managed? Businesses have reputation to uphold, Mr Tan An Kow can just MIA and migrate. You have to know the implied risk when you expects your implied wants to be fufilled.
PS. Posting such long reply using PDA can be a tedious exercise of paitence... hahaha.