Wife offers deal

[Spidar]

My wife has offered me 1k for a strictly tourny bankrool. There are small, $40-$50, daily tournys here in LA as well as $100's and bigger. The caveat (isn't there always a caveat?) is that after the original 1k is re-paid, 50% of any prize money goes to household expenses and the rest is mine. The $40's pay about 2k for a win. As I currently pay my own buy-ins it appears to be a win-win, but the deal seems to be a longterm loser as it impacts my expected roi using my own money. I only have time to play a tourny, maybe 2 a week. Am I overthinking this? Anyone have thoughts?