I think you can upgrade the bike for less than €540 that was mine and the LBS’s general consensus. the one up from the Race wasn’t worth it unless you went into the Elite range.
If you look at it, you’re only really getting a bit extra XT you can find this bargain bucket OE stuff from the likes of Merlin, CRC and the wheels but you can get for as little as £264 for Hope/Crest whilst not super light they are a light and durable wheelset.
From SRAMS website (though I did raise an eyebrow)
Reba RL 29″: 1564g, *Weight based on 265mm tapered steerer, 9mm QR lower leg, Dual Air
SID RL 29″: 1584 g, *Weight based on 265mm tapered steerer, 9mm QR lower leg