I have a hobbit and I love it and I would love a tomos silver bullet---in addition to the hobbit. I think they look kinda cool.
Note: I couldn't see the picture you attached (this site has a problem with .bmp files, next time try a .jpg) so I'm basing that off of what I know they look like.
You can get both going fast, and can get parts for both. I bought my hobbit because it was what I could get for a good deal at the time. I got it for 200 non-running. It turned out great, I love it so much.
If I was you, I'd go get the tomos for 200 from that guy and call it a day. (if you can't get it for 200, 275 or less still isn't bad)
I guess it also depends on the condition of the peds, if they both run...all that stuff. Assuming same condition, go for the easier to get and cheaper one.