I found a contender last year at Ikea for $99.00, which was a steal of a deal considering all the other ones I found were $400.00 and up.
It had a thick wood frame around it and even if I painted it white or stained it, I knew I wouldn’t be 100% happy with it.
It’s a solid trim too, not the flimsy plasticy casted kind that you find a lot of frames in this style made out of.
Check it out: