[sometimes]

I think it depens on why you want a spotting scope. Personally I only ever used mine for confirming the identity of birds and in all honesty after a while I was able to suss most birds with a pair of bins and seldom used the scope. Of course it comes in handy if you want to see stuff half a mile away - but do you really want to be that sort of wildlife viewer. So the scope you mention would be perfectly adequate.
In all things there a great danger in falling onto the kit escalator, which is a waste for the number of times you might use a scope.
On the other hand, I'd recommend you get the best possible pair of bins as you'll be using them for most of your viewing.