Well, technically as an owner of TRS19, he would also get:
- TANE access
- a monthly FCT
- 5 DLC items to choose each calendar month (so 5 in August, 5 in September if you sign up today)
- Trainz PLUS (new features when they are released)
- Preview Pass (check out new DLC for 14 days pre-store release)
- A 25% discount on the store
- A monthly "Exclusive Deal" (which this month, we are about to announce, is a 50% discount code for items in the September DLC Collection).
So apart from not needing to purchase TRS19 (as that is also included), it still seems like a pretty good deal to me.
Silver would only give you the FCT, DLC, exclusive deal and a 10% discount.
If you were planning on buying a monthly FCT ($7.49) and then Mojave Sub for $24.99, you would spend $32.48.
For a one month GOLD CLASS subscription, you would spend $14.99, + $12.49 for Mojave using your Exclusive Deal discount code = $27.49. A saving of $5.00!
And that is ignoring everything else you enjoyed during the month.