200 MHz is good enough for most things. And for modern computing electronics even 1GHz is too slow, e.g. monitoring USB3 or high speed PCIE data lanes.
Did you get a price quote for that keysight oscilloscope? I see that you can also rent them for $2000 a month.
We've rented them in the past- always we're not quite sure we're done so keep them much longer than necessary. They're kind of a pain to pack and ship.