I dont like the idea fo making getting out of DR harder.
How about lefting body with all items on the ground in place of death ? Player would have to run back from DR to the body to get back all items.
Lets suppose a group of 4 players will unite to fight a monster in distant location from Hydlaa plaza. Spawn time of a monster is 5minutes (five times slower than normal) and your time get back from DR to fighting place is 15 minutes.
After 20 minutes fighting with monster (5 monsters) one or maybe two players will probably die - the weaken group have to fight with monster and probability of death for rest of group is rising. - they probably die before rest of party come back - and the circle is closed this way
Of course players can wait for those who died.
(hmm people looking one to another, looking at clocks err. azure sun

- do we wait little more, do we fight or do we let another group get out monster, who is apparently also very bored.)
The group also can be bigger - it will not suffer that much from loosing a player or two, however from my experience (EverQuest) parties bigger than 4-6 players usually are made of guild members.
I would like more to get back to fighting place back to get all my items and arm again to fight with group,
than getting ressurected in DR and have to fight alone (with all my items - stamina exhaustion!) my way back to group to fight with them
Besides dead bodies of players around moster would indicate that this moster is really dangerous

- ups someone died here ... where is the danger... *looking around*...
IMO: loosing exp/pp/skills - YES - death IS something u have to care to not happen
(skills less likely - is still is hard to develop them)
making the time to get back from DR bigger - NO