That's the thing, i was never really unhappy in that situation. at times i was concerned that we wouldn't be able to, for example, buy clothes to the kids. But i was always happy.
But now i'm happy*2 cuz i can buy stuff, stuff i need, or stuff i want.
The thing is, money in it self doesn't make you any happier when you reach a certain level. But a lack of money can cause stress and in extent unhappiness.
I think the problem isn't if money brings happiness or not. The problem is, where's our baseline?
If the baseline is set at a millionare level, then no. Money does not make you any happier.
If the baseline is set at a minimum wage income. or in my case, a level where every single coin is godsent, then money does make you happier.
I was happy when i bought my car.
I was happy when we bought the kids bikes.
I was happy yesterday when instead of macaronis and sausage we had filet mignon.
I was happy when...
etcetera ad infinitum (or close to).
You can argue this back and forth for eons, having money wont in it self make you happy. Spending that money can make you happy, thus a larger cache of money can buy you more happiness. But when you reach the level of multi millionaire, there's not much more you can spend your money on that makes you happy. Thus limiting the claim that money can buy happiness.
I might have lost the thread a few times there, i'm at work ;).
Anyway.
Lets say a median household got 1000 TC a month.
They've got expenditures of 750 TC a month.
If they go below 750 TC in incomes, they will gradually become less happy (although, not necessarily unhappy)
If they go up, they will become happier, not by the income itself, but by what they can get for it.
Suddendly their VW Golf -88 is replaced with a Audi A4 -08.
Their 3 room apartment is replaced with 6 room house.