Yeah, I'm with Lloyd here. The buyer seems like he wants to know how much they make so he can go take over himself and offer a better deal.
And without you sharing the details of your contracts, it's hard to know how to value them. I figure your contracts are worth somewhere around 75% of current earnings (remember, anyone investing time and money in keeping going need to be compensated for that - the business is worth it's earnings after those expenses, not before... this may even be low) times the amount of time left on the contract. Otherwise, you always run the risk of having someone pop in when they are done and renegotiate the contracts and take your spot.
I would also value the equipment separately than the route itself. It's a lot cleaner to say that the route location is this and you're looking for this for the games. Also, although you are probably fairly valuing the games at regular market prices for peer to peer sales, as an operator I don't know I would want to pay that much for them. I'm thinking you are closer to $26,000 or so for the games as it's own piece.
The route then, if it is $900 a month, I would consider it $675 per month left on the contract. That would be $16,200 for the route piece of it.
Having said that, you're still going to have a hard sell. If you drop the price to $40k, you're asking someone to take on a business that theoretically makes $2,700 each year, so to "pay it off" will take almost 15 years. And yes, you can sell the assets in between and theoretically cash out - IF they remain in the same condition - but that doesn't make it a great deal.