There is nothing wrong with a pinned end blade machine.
I used mine for about 8 years, and i could make pretty nice things.
But it's a fact, once i got my EX21 a new world opened up to me.
I can make much more fine projects.
But we all have to face it.
It isn't cheap to buy a new machine, specially if you want the top of the line.
I had to dig deep in my pocket to buy my EX21, but it's worth every cent of it.
Although it is good to learn on a simple machine and find out if scroling is something you really want to keep on doing.
If so, then i think start saving like mad and upgrade your tool.
More on topic, i don't know how it is in the USA, but here in Belgium we can buy pinned end blades in every DIY shop.
Glenn, Belgium