Prometheus wrote:

So, I'm left debating whether I should go with the tools or the
extension- There's a big difference in the cost of the two items, so
the tools looked like the way to go at first, especially since they're
what I need the most right away, but I don't want to waste the
opportunity to get the extension free if I'm just going to have to get
a better set of tools in a few months.

FWIW

Go for the extension. You can get a perfectly serviceable set of 8 HSS lathe
tools from HF for about $40. I've been using mine since August and liking
them. To that initial set I have added a couple "grind as I go" scrapers
made from HSS flat stock, an oval skew and a Sorby hollowing tool. The HF
set has good steel and longish handles that are plenty comfortable to work
with and hold their edges decently.

Bill