I generally look forward to re-recordings, even if the majority of the time, it seems I end up preferring the original. It's always a chance for the artist to outdo themselves and, if they do, then great! If not, then, oh well, I'll just keep listening to the better version. I don't think an actual "time limit" needs to be set regarding re-recordings, but some bands overdo it. For instance, Scarlet Valse (f.k.a. RailTracer) will be releasing the third recording of their song "Secret Eden" (and the second PV!) in 4 years. Based on the previews for this newest version, there's nothing especially dazzling about it, so it seems like overkill. One trend I've noticed with a few bands is that re-recorded songs (re-recorded album versions of older singles, for instance) tend to have a lack of punch. For instance, take UNiTE's third album Ai. The three re-recorded singles featured on the album were missing some of the oomph that the original songs had. Somehow, vocalist Yui didn't sound as invested in his singing on these tracks the second time around. It came off as kinda "well, I already know these songs and we've had 'em for a while, so I'll just phone it in." I've noticed this vocal phenomenon with other bands too when it comes to album re-recordings. In this sense, I might find myself tending towards original versions of songs. I'm not sure if major/indie necessarily plays a role, but I guess it just depends on what kind of production quirks you prefer. One example that comes to mind is Czecho No Republic, who re-recorded quite a few of their songs after becoming major. Like on UNiTE's album, these re-recordings were lacking a certain something. Personally, I prefer my re-recordings to be as different as possible, to the point of reinterpretations. The closer the two versions are to one another, the more nitpicking I do and I find myself having to choose between them. Just the slightest differences in production can strongly affect how much I like a song. For instance, one of my absolute favorite songs EVER is Canzel's original version of "Yumekui Ballet" from their debut single. The re-recording emphasized the synths more and somehow, I just don't enjoy it nearly as much. If the two versions of a given song are quite different (like DIMMDIVISION.'s recent "remix" re-recordings, Shiina Ringo releasing bombastic big band remakes of her pop/rock oriented tracks, Jikkendai Marmot's themed "self-covers", or when bands do acoustic versions, etc), then there's a better chance of being able to enjoy and appreciate both.