Speaking of Gog, even with all three Sam & Max seasons on sale. it's still cheaper to buy the complete pack on Steam WITHOUT it being on sale.
Actually, for that matter, the gog versions are normally $10 more than the Steam versions.
Season 1
Gog: $30, $15 on sale.
Steam: $20
Season 2
Gog: $30, $15 on sale
Steam: $20
Season 3
Gog: $35, $17.50 on sale
Steam: $20
Complete
Gog: $95, $47.50 on sale
Steam: $60 individually, $40 bundle deal.
Unfortunately I cannot afford the complete pack right now, either.
Unfortunately for me, there was a sale on Gog a month ago where Sam & Max was less than $5 each season, but I missed it because, well, I didn't know about it x_x
Oh well, here's hoping Steam's summer sale includes Sam & Max.