If your player already supports it then there are enough titles still in print to pick up a few, you can get almost all the Elton John SACD's for around $20/each and they're all amazingly mastered with excellent 5.1 multi-channel mixes. NIN's The Downward Spiral, Dark Side of the Moon, Brothers in Arms, they're all easy to find online as well. But other titles well worth picking up like Billy Joel's The Stranger, the amazing MCH mix of Beck's Sea Change, The Police, Sting, Toto IV MCH, Genesis, Depeche Mode, these titles can all cost you between $50 to $150. It's hard to say it's worth it when so many titles are OOP and cost you an arm and a leg. I certainly wouldn't buy a high-end SACD player in 2010 unless I was a jazz or classical fan...but the classical labels are also the first to start supporting Blu-ray and there are already high-end Blu-ray players too so as a classical fan I'd also be likely to consider Blu-ray first and I think BD will also see a push for pop/rock titles before the end of 2012 with The Beatles remastered 24/192 releases and perhaps a deluxe 5.1 edition of MJ's Thriller.
I am amazed with SACD quality and I think when you hear "Scenes from an Italian Restaurant" from Billy Joel's The Stranger in 5.1 you'll start campaigning the major labels to give high rez another chance on Blu-ray, the results from a good surround mix like Elliot Schiner's mixes are amazing.
I don't think PLII compares at all and I've done several tests including The Beatles, tracks like "Strawberry Fields Forever" are a bit of a mess compared to the discrete 24/96 MLP 5.1 layer. I believe Love DVD-A is still pretty easy to find as well.
I can only hope that Blu-ray will allow us to see feature-laden releases from DMB, pearl jam, Coldplay, Verve, Oasis, Smashing pumpkins, Soundgarden, Alice in Chains, The Cure, Jane's Addiction (live Blu-ray coming out next week), Nirvana, etc., etc., complete with high reoslution stereo and surround mixes, interviews, b-sides in high resolution, performance footage, interactive discography, CD or digital download coupon, etc., etc., enticing not just audiophiles but fans of the band, music shoppers, etc., to get back into their local store or order a physical product online. 24-bit digital downloads are only ever going to be useful to people that care about fidelity, BD albnum releases done properly could be enticing to several different types of music fan,
That's not really true at all. SACD nests CD ... so you get ALL the CD content ... and then you get the hi-rez SACD stuff as well. That's more - not less.
If your contention is ... "ah yes ... but there isn't much hi-rez content on SACD" .... well that's not true either. There are over 6500 titles ... and growing at about 600 new ones a year. That's vastly more hi-rez content than on any other format. DVD-Audio is kaput. Downloads have hardly any hi-rez content available - in the hundreds ... which is a tiny fraction of the number of SACD releases available. So - yes - 6500 titles is not enormous ... but it's vastly more hi-rez content than any other format.
For high resolution pop/rock there isn't a large gap between new DVD-A titles and SACD titles. There's been a few new titles on SHM-SACD from Universal Japan but it costs around US$60~US$75 to order them depending on the retailer. For all intents and purposes both are dead as far as pop/rock goes.