Toyota Repair: 94 Corolla engine mounts, corolla dx, engine vibration

Question
I own a 94 Corolla DX with 68,000 miles.

Excessive engine vibration over past year has become gradually worse.  Shop states that all engine mounts need replacement at $850.00 cost.

Is this a reasonable cost for this repair?

Answer
Sounds reasonable but I'm not sure that all the mounts need to be replaced, most of the time it is only the mount on the front of the engine, (the one on the inner right front fender) that causes vibration problems, why don't you tell the shop to replace this one first and see if it helps.