the mk6 was never a very good LPV, especially at its price. Today, there are much better options like the NX8 and Vortex Gen 3, both can be had for under $2k.
Eotech also make a very nice LPV that is quasi daylight bright and 1-6 FFP around the $1k mark. You can also pick up used gen 2 razors for around $1K.