The $150.00 per season is reference to the initial prices the TNG DVD season sets first hit the market under in 2002. Obviously, DVD season sets are cheaper now ... but the Star Trek DVDs have never really been the first to drop in price.
I don't doubt for one second Paramount would charge as much money as they think they can wring out of the all-too-eager Trekkie nerds' wallets as they can.
see this posting
for the prices on the TOS episodes & then full seasons with various home video media releases.
Star Trek TNG DVDs as sold by Paramount/CBS Entertainment's website startrek.com are still
Star Trek: The Next Generation - Season One Box Set
$74.99 today though not quite the same price as the original $120. retail that some people actually paid when the list price was $139. in March 2002 according to DVDTalk.com
Star Trek The Next Generation - The Complete First Season
DVD still retails at Amazon.com for $51.99
now when you are talking about HD remastering to HD let's look at the pricing of TOS season 1 on Blu-ray. 18 month's after it's release:
as sold by Paramount/CBS Entertainment's website startrek.com are still
Star Trek: The Original Series - Season 1 (Blu-Ray)
for comparison Amazon.com has
Star Trek: The Original Series - Season 1 [Blu-ray]
- for $62.49
We will see the ENT series on Blu-ray before any TNG episodes and most likely each season will be priced similarly to TOS seasons around $65. at Best Buy & Amazon.com when released.