Ok well I'm not much to give advise on this subject as I have only made lasagna sheets with my pasta maker.
But anyway the lasagna sheets worked out really well (although I think I rolled them a little thin) but still great. I'm yet to try making spaghetti which is my next adventure.
As for making the dough that's too easy, just chuck eggs and flour in TM and whizz for a few seconds and it's done ready to knead by hand.
I only paid $15 for my roller (without the extra attachments. It's not a top quality one, but I thought that if I didn't use it often then it's only $15 so who cares
This looks like a good buy with the extra attachments. But I guess it would depend on how often you would use it. But it's not a huge amount to spend still.