I'm pretty sure it's only $1.5k of spend IF you're already a gold. Otherwise it looks like it's $6k of things billed to your suite. Not sure if the suite itself counts.

BK - If you have some other secret way of qualifying for Gold @ 1.5k, please share!

But with their current stance on comps, that's made Grazie a lot less appealing.

I don't have the math skills/patience to compare the return rates at the various comp programs to see where Grazie currently fits. IIRC, they had a pretty good conversion rate from points back into cash or free play.