I would only get one If I could use IRs with it instead of the built in ones. If you can get one for cheap I would go for it. Dont expect it to literally blow your mind though.
If you want to go old school I would rather consider The POD XT Pro or even the Boss GX-700. I have both of them, and still to this day I use them for demoing my tracks.
I use the Vetta II with a 4x4 Mesa on the actual album tho'...