No you haven't bought "dead software". You've a good $30 trial for a
$95 app . If you like what you see and EazyDraw becomes a main tool
for you, then $95 is reasonable and you've paid the same ($5 less)
than a long time user that bought for $95 then paid $35 for the
upgrade.
But we should all know that anything you buy in the App store is very
much "AS IS", we can't ever be sure the next update, if done, will be
accepted.
The "line" in the description that you mention was not allowed because
EazyDraw 4 was not accepted at that time and (understandably) Apple is
not going to allow a "line" that tries to move the sale back to our
web site. I may try the "line" next update but it will probably be
rejected. Updates into the App store take from a few to several weeks
for approval you know, and if I try a questionable line that will add
several days or a week if rejected.
OR - the $35 upgrade from the EazyDraw store is being honored for App
store purchasers (for a time anyway - no guarantees) if you email in
the build number from About EazyDraw (or put it in the comment field
at checkout) as proof of purchase. But note - this switches you back
to Free Market licensing, with the clunky old license code thing.