I ran across this web page today, which has some interesting information:
http://gowebnames.com/p/rlsales
They've collected a lot of data about domain name sales that had repeating letters - in .com, gtlds, and cctls.
Some .in sales:
xxx.co.in - $651
ooo.in - $2006
jjj.in - $1800
sss.in - $1118
uuu.in - $1022
rrr.in - $788
http://gowebnames.com/p/rlsales
They've collected a lot of data about domain name sales that had repeating letters - in .com, gtlds, and cctls.
Some .in sales:
xxx.co.in - $651
ooo.in - $2006
jjj.in - $1800
sss.in - $1118
uuu.in - $1022
rrr.in - $788