I have PR2-PR4 with niches : tech ( PR3 & PR4 ), education ( PR3 ), business ( PR3 ), entertainment ( PR3 ), general ( PR2 ) and Home/Archtecture ( PR4 )

My sites never dropped, Please have a look at the price:

PR2 sites
Blogroll/site:
$1.5/month
$4.5/3 months
$8 / 6 month
$15 / year

PR3 sites
Blogroll/site:
$3/month
$9/3 months
$15 / 6 month
$25 / year

PR4 siteS
Blogroll
$6/month
$18/3 months
$30 /6 months
$50/year

Blog post/review (permanent)

PR2: $3 you Write ( 2 links allowed per post)

PR3: $6 you Write ( 2 links allowed per post)

PR4: $8 you Write ( 2 links allowed per post)

thanks

Send me the detail if you have offer still available with your mail id.