I said I wouldn't have one for that reason- that's not to say that they're not both good bikes and the OP would do well to get either- some people relish in the fact that they're popular.You are suggesting Specialized because you think Giant are common . I would say I see 2-3x as many Specialized as any other brand on the roads at least. Very few Giants in comparison
Get a brand you've never heard of if you want something unusual I had my Pearson out today, didn't see another and that's in SW London where they hail from. I probably saw 15 or more Specializeds however
In Manchester or Cornwall, I doubt you'd ever see another Pearson
That said I don't think you can get a geared Pearson for a grand
You're right though- I don't think I have ever seen a Pearson in the flesh (so to speak) and wouldn't even know where to go to look for one, glad to hear you're out on one giving everyone else the chance to.