They said $150-$250k a year for the owner so you would get paid better too.
Maybe from the perspective of a tech person in silicon valley that's not great. But in comparison with pretty much any other job out there this is stellar.
$150k-$250k/year is a fairly nice ROI for even $2M (though taking on loans or investment changes the math), but the calculation gets a little murkier when you factor in additionally needing to work 60 hours/week, six days/week to keep it coming in.
Put another way, if you already have access to $2M, $150k-$250k/year might not seem all that attractive when compared to what you've done prior to that.
Most people work far more for less and would love to have their own business with this much potential earnings and low startup cost.