I like this one. I wouldn't pay more than hand reg, but I think it is catchy and memorable. The downside is, like
@JB Lions mentioned, at this point, you don't have the inventory to go with the name. While I don't think they'd need to really be million dollar domains, I'd only use it after I had a stable of $10k+ domains. Million does denote quality and the hyperbole is acceptable, imo.
But...I'd rather have Super.Domains or Great.Domains or even HighQuality.Domains, TheBest.Domains, KickAss.Domains etc. Still it spans the dot better than some others you've floated.