auto trans info Options

[Fr3AkAzOiD]

Looking to sell my '96 Miata track car and get a vert Celica so the whole family can enjoy.
My wife doesnt like driving manual trans cars, what is the auto like in the Celica GT?
What sort of life expectancy should i get out of it presuming the previous owner never had the trans serviced or fluid changed?
How expencive would getting a new auto trans be (ballpark) if I had to get a new/rebuilt one?

Sorry for all the questions but over the past 20+ years I have had 6 cars with manual trans and other then my s2000 needing second and third gear syncros done there have been no problems.

On the other hand I have had three auto cars. One couldnt decide what gear it wanted and kept changing up and down.
One needed the trans replaced about every 70-80k miles to the tune of about 4k.
My auto track car (not the miata) has a trans and oil cooler and has 173k miles on the original trans with over 600 laps at Virginia International Raceway track day events.

I just want to make sure I am not making a mistake looking into buying a 20 year old car.

[Fr3AkAzOiD]

Thanks for the help.
Reliability is my main concern.
Solara is about a foot and 1/2 longer then the Celica and would be too big to fit 3 cars and my boat in my garage.
Reliabilty looks decent, will have to take a test drive and find out if it feels decent or if the automatic makes it a soulless appliance.