Linux itself might install more easily than it used to - but try setting up something to read Pages/Numbers/KeyNote documents, operate your iTunes account, read your iPhoto albums, use your iCal calendars, run Spotify?... most of that can probably be done, but I can't see it being exactly simple. (Being somewhat pissed off at Apple for obsolescing so much of their old systems, I have contemplated doing it, but it always worked out cheaper and less effort to stick).

I still use the Classic environment for documents created with obsolete applications on MacOS 9 (and older). Apple won't let me do that on anything later than 10.4.11 and I can't see any other platform being more helpful.

Things on my website or that I still use now were created using a mix of BBEdit, TextWrangler, TextMate, BarFly, WriteNow, Nisus Writer, Excel, MS Word 4, Office 98, Graphic Converter, Comic Life, GarageBand, Audacity, TeXtures, Acta, MacDraw, MacDraft, Claris CAD, SuperPaint, xRes, Eudora, Kali, Toast and about ten different web browsers to test stuff on. I never had all of those in use at one time but I never know when I'll have to look at something from way back. I simply don't have time to check if I can still access everything I might want to look at again using some new platform.