Joe - I'd see this as a compliment to Audacity - both together should cover most essential bases for home project studio recording on a tight budget.

Reaper is not freeware, but requires 'honest' users to pay for it after trial expires - even though it is still fully functional.

However Reaper is maybe too complicated and packed with too many bells & whistles for many of us...

So I think Tracktion 6 at least deserves a look at...