If he were looking for a few thousand more, I think he'd negotiate a little without needing to wait out the season. But realistically, he's come from the bench (though doubt he was considered cheap coming off the bench) to team MVP, top five in the league in scoring, rebounding and blocks. He'd know that Ballinger is out of contract and unlikely to command the same money again.
It could hopefully just be a way of knocking the price up $40k which isn't unreasonable, though hopefully wouldn't prevent the 36ers from upgrading elsewhere.
If he were from Melbourne and keen to join their new team, I'd worry about losing him there, but Perth have Wagstaff, Knight, Redhage and may want to keep Nevill too.
Only takes one other team to make it a bidding war. Wollongong aren't going to win one. Perth I've mentioned. NZ would probably want to keep their successful combo. Cairns have Loughton and Crosswhite. Crocs and Schenscher - I guess they'd stay together? Melbourne couldn't really pair Tragardh and Johnson (but you never know with them!). Blaze maybe - they have an import and Garlepp plus would free up money abandoning Harvey. Sydney have Khazzouh and like Grant. New Melbourne team is a clean slate.