Frank - if you can find a woodworking store in your area, they sometimes arrange demo days when manufacturers are one hand to demonstrate their equipment. They'll let you try the features and point out the differences.
For my opinion, the Porter-Cable ($180 with light and stand) is a great low-cost machine. It is solidly built, has a little bigger motor than usual, and works very well. But it does not have a lifting top arm, and you need to tilt the table (not the blade) for angle cuts. If I were staying under $200 that is the machine I'd go for (in fact I did for my 1st scroll saw).
Once I got hooked on scrolling I bought a 21" Excaliber. It is a beautifully made machine with stay-in-place lifting top arm and a tilting head/blade (rather than tilting the table). It costs about $850 with the stand and you need to add a light and foot switch.
If you inherit from a rich relative, the Hegner is a workhorse. That suggests it might be a hard to control, but I've never seen better control for small lettering than Marcel has done, and I believe he uses a Hegner.
Sorry to flood you with opinion without answering your question.