Valuations aren't kosher here but any time I see a Gillette adjustable razor for a price like that and in good shape I pick them up because they're worth it to me. I have a fatboy that I enjoy quite a bit.
If you're not sure if it's worth it to you I would suggest checking the bay and see what the going rate is (I don't know the model name of that razor but it seems similar to a fatboy) .