Trying out windows phone.

So all this windows phone chat has gotten me interested as to why it's so bad (or good). Would it be worth getting an older type Windows Phone to try it out?

I'm asking this because as the resolution is the same and there are no skins... trying out software on it is essentially all the same on all the phones, am I correct?

I can get my hands on a Samsung Omnia 7 unlocked for about £60 so I thought it would be worth a shot.