The Kraken:
Knowledge, whether used or not, is not without its worth.
I love this statement. I've also heard it said that knowledge gained is it's own reward.
I only have about 25 dives over 150' and just a handful over 200', but as a tech nOOb, here is my take.
Not all tech dives are short bottom times and long hangs. We did a boat dive today to an 80' wreck that is in tact and rests at 110'. A bit of HE for a clear head and one 50% stage. We swam the length of the boat over the top and looked at the fish who rest there during the winter. We practiced penetrating the cabin and swimming through, past the doorway, into the hallway, up the stairs and out - without silting. Then we did it again while air sharing. Next we ran a line back through and did a eye's-closed drill. Reel in the line, once around the outside, and before you know it, 40 mins have passed and it's time to ascend. During the 20 mins of deco up the line we practiced stage swaps and backward kicks, and before you know it we're back on the boat.
This was just an easy low-tech dive, but lots of fun, and one I wouldn't want to do on a single.
The deepest I've dived (to date) is 230' and we did have a long hang, but you'd be amazed how fast the time goes. You get into this "zone" of relaxation that is as peaceful as it gets. We also drill - shoot bags, etc. and the time just flys.
Like the knowledge The Kracken refers to above, I find that properly executed technical diving is it's own reward.