At 90K miles the car is due for a “major” maintenance service. This includes a timing belt and water pump if the motor has one, and I believe it does. Some Toyota motors are interference and others are not. You can research this issue for this car on the Gates.com web site. This major service also includes new spark plugs and wires which might contribute to the starting problem you described. If the major service hasn’t been done, and it includes a timing belt you are looking at $1,000+ dollars for this service.
The prior service history on the car is important, look for documentation to support any claims by the dealer about the car’s service history. A pre-sale inspection by an independent mechanic of your choice is good advice. In general, these are good cars and this one is worth checking out and then see if you can negotiate a fair deal.