The Go2 is easy to buy and easy to under-spec. Before you pay, lock the use case:
1) AIR vs PRO vs EDU — compute, sensors and how deep the SDK lets you go.
2) Runtime and payload: what you actually mount changes battery life.
3) Environment: dust, rain, stairs — pick the feet and IP rating for the job.
Configurations and current pricing: https://robapp.store/en/#catalog
Tell us your scenario and we'll match a kit: info@robapp.store