And don't forget, and this is a key point a lot of low-level players forget: you don't have to build a wonder to get it.
A point they can be forgiven for forgetting, because on low levels you
do have to build a wonder yourself to be confident of getting it in reasonable time. I've seen people post 1000AD and later saves in which
The Great Library was still available on Noble.
That said... Spiral Minaret is not the most stellar wonder. First you have to pick up Divine Right, which is a moderately pricey tech, one that the AIs value relatively highly,
and a tech that comes at the same time as Renaissance warfare starts to become a big priority, and if you don't want that Corporation beelines start being attractive. If you can bulb it, it can be worthwhile because you've got a good chance of getting it as a monopoly tech then, which gives you good trade leverage.
Then once you've got Divine Right, you need to build Spiral Minaret. Unless you're lucky enough to be IND or have Stone, it's a hefty chunk of change to build it (you could get a half-dozen cannon for the same cost, or about 1/3 of the total costs you'd need for a cannon + musket drafting war). And unless you're SPI or already are getting state religion building boosts from AP, UoS, and/or Sistine, you probably don't have that many temples/monasteries/cathedrals anyways.
Don't get me wrong. It's no Chichen Itza; SM has some really good situations in which it's definitely worth building.* But there are also many games in which even if you were given Divine Right as a gift you still wouldn't want to waste time building the Minaret.
*Example: It is a not-uncommon situation in cultural games to have enough cities for 3 state-religion cathedrals, and also have state religion monasteries in those three cities. If you have a shot at Divine Right and SM in this case, it can often make sense - the extra holy city means you're guaranteed another set of cathedrals, the extra income from Spiral Minaret can let you push the culture slider up a bit higher when you shut off research.