Not knowing where you are located, let me tell you, Craigslist has a bazillion used scroll saws in my area.(So Cal). I see quite a few Delta saws on there and they have had quite a few good or great reviews here. I just bought a used Hegner with all the bells and whistles for $300. Great saw in like new condition. My first saw was a Dewalt 788 type 1 that I paid $225 for with stand and light. So, I would stay away from the low budget saws. Nothing but trouble and might just turn you off to the hobby because of their shortcomings. This is a great place to ask for advice before buying any saw. Be sure to ask questions and I guarantee you, you will get the information that you need to make a decision.
Oh, and if you are new here, welcome to the SSV. Great place to hang out.
Ray
Here is a prime example of what I saying. I realize the table looks rusted but that will clean up.
https://sandiego.craigslist.org/esd/tls/d/dewalt-scroll-saw/6467808395.html