What is the most expensive object on the game so far?

The $15000 violin is the first thing that came to mind

The suit of armor in decorations I think is either $12,000 or $8,000-cant remember which.

And the Schnapple fridge and oven. They go for a good bit I think.

I think there is a double bed which costs 12,000 Simeleon or so.

the wishing well is 8000

I have a bookstore in my game. It amused me, that the more expensive books, the university books, are my bestsellers and they are often bought by children. Obviously I have ambitious little children.

The top three most expensive objects in TS4 is:

1. Out of This World Desktop - 15100 (unlocks at Level 10 of the scientist career)
2. Virtuoso Violin - 15000
3. Schmapple Fridge - 14000

Source

babies B)

Thank you guys! Yesterday I saw a bed from Get Famous that costs 15000.

If you are talking strictly base-game, it's the Virtuoso Violin at 15,000 Simoleans.

Princess Cordelia's Gallon Bed is 12,000 Simoleans.

The Queen's King from the Get Famous pack is 15,000 Simoleans.

The Out of This World Desktop from Get To Work pack is 15,150 simoleans but it's a locked object.

I like to get the Mansion Baron aspiration on my rich sims so I am thinking about creating a painting and putting the value at 350,000 so they don't have to buy 10 Virtuoso Violins to make the house worth enough! I don't like my sims living in mansions, I prefer smaller houses so this aspiration becomes a pain to complete sometimes!

Off topic, but maybe this helps you @SimsLady2000 : You can place the vault from Get famous and fill it with 350,000 simoleons (or less, depending how much is missing to meet the house value goal). That will fulfill the aspiration goal.