For many tennis players, love means nothing.
Money can't buy happiness but nether could the absence of money. It's not really a good argument against money.
Probably all of the current problems in my life could be solved with money.
CAN you be happy because you have money? Yeah, why not. WILL you be happy if you have money? No guarantees at all.
It always depends on the circumstances and the person but generally I would say that money can definitely buy happiness. I think that sentiment is mostly cope by those less wealthy.