It's that old game of Samsung model numbers again, I'm afraid. We tested the LE32R87BD in our October issue (5 stars), but I don't know how similar/different this is to the 32R73DB model you mention.
Samsung has a habit of creating different model numbers for different retailers, which does confuse the issue somewhat, and despite what they say, their same-size models with different numbers don't always perform identically, as we discovered in our 42in Supertest this month.
Where have you seen this particular model on sale?