Yeah, when I started out with the first Intel Core Mac Mini, I bounced down most of my effects-heavy tracks, though I did this pretty begrudgingly. Fortunately Logic has a great feature where you can "Freeze" a track to a "bounced"/rendered audio file -- if you want to make edits to the effects, you can un-Freeze, make your changes and re-Freeze. Only downside is, this takes up precious time when you're trying to be creative/productive. :)
These days everyone expects to be able to just layer on 8 effects on every track but.. that's a pretty recent luxury. Back when computers weren't really powerful enough out of the box to do stuff like that you could get dedicated DSP cards like Universal Audio's "UAD-1" PCI card, which let you use really high quality effects on your tracks without overloading your CPU. Now they have newer Thunderbolt/USB-based outboard stuff to do the same thing.
Regardless, most people in audio know you never buy the brand new hardware (especially when it's on a new processor architecture) and expect to be able to do everything as effectively before. It takes a while for all the third-party software vendors to update their stuff and make it run smoothly, assuming the software team is still in business or still working on that product. There's a ton of great stuff we'll never get new updates of. This is why you'll sometimes find pretty old computers in musicians' homes... There's still one cool granular synthesis app I can think of for Mac OS 8/9 (th0nk) which was never updated for anything newer, for example.