I think Stars should really keep those 82$ PLO and PLO8-tournaments, but also restore 215$ events for reasons other posters have already mentioned. Just switch them so that 215$ event is on other day than 82$ events (so NLO8 215$ in Saturday and PLO8 in Sunday) to make them little more mixed.
I haven't played those 215$ and 82$ PLO8/NLO8 events much for two reasons: 1) Bad satellite structure and 2) lack of good O8-tournament schedule to support them. I want to concentrate in one format when playing high buy-in online tournaments, and there's simply no big buy-in tournaments enough to keep me 4-6-tabled for good chunk of evening.
PLO / PLO8 / NLO8 are far most popular games not including NL Texas, and yet your tournament offering of those is rather bad, more like some minor formats like 2-7 triple draw (I like it also, though) than NL Texas. Your player base would support probably easily even if you would DOUBLE your tournament offering in these games (or at least in NLO8 and PLO).
P.S. Now that you just over doubled your rake (+150%) in NLO8 hypers can we have more of them, too?
P.S. I'm not playing Texas NL in PokerStars, other sites have much better offering of those (in name of promotions, weaker players and other reasons). But I could almost purely play O8 in Stars if you just would offer it.