If the $500 can't be used for direct upgrades, maybe we could use it as prize funds for a few competitions to drum up interest in the forum. Yesterday's GDT had only 3 pages and a lot of the comments were about this bet.
We could pick a player each month for the rest of the season, and give $100 to the poster who gets closest with a OPS prediction at the end of the month. Any of Travis / Donaldson / Martin / Pillar / Tulo (if he comes back) / the September call ups could be used.
It could make the season a bit more interesting for those that have stopped paying attention after a bad month for the Jays. It also gives tercet a chance to win at least some of his money back!