[Jack Simth]

Core, they are the most gold-effecient for charged items. A caster level 1 Cure Light Wounds costs 15 gp/charge from a wand (750 gp per wand, 50 charges per wand). Each charge heals 1d8+1 HP (average 5.5), for 2.7272... gp/hp (on average).

I don't have Craft Wand, however. It costs 12.5 gp and 1 xp to scribe a caster level 1 scroll of Cure Light Wounds - marginally less than the cost of buying a charge from a Wand (if you ignore the XP cost).

If you branch out to Complete Divine, though, the ubiquitous Wand of Cure Light Wounds loses it's place. See, it costs the same amount to make/buy a Wand of Lesser Vigor as it does to make/buy a Wand of Cure Light Wounds. Lesser Vigor at caster level 1 grants fast healing 1 for 11 rounds. At 15 gp/charge, that's 1.3636... gp/hp (flat rate, although some will get wasted towards the end of the duration).

If you want to go really long-haul, the (very small handful) of x/day items that do healing are even better - although not for the why you want a Wand of Cure Light (lots of healing over the next five minutes). A Bead of Healing, for instance, is valued at 9,000 gp, and can cast Cure Serious Wounds once per day. At caster level 5, that's 3d8+5 (average 18.5) healing per use. After 500 uses (500 days), you've gotten the expected average cost per HP below 1 gp/hp. Likewise, a minimally intelligent Cloak of Resistance +1 with a single lesser power of Cure Moderate Wounds (2d8+3) 3/day costs 8,500 gp, market, and heals an average of 36 hp/day; after about 240 days, you've gotten the expected average cost per HP below 1 gp/hp.

If you sleep for a day, you gain twice your HD in HP, at the cost of a day's rations (5 sp). At our level (5th) that's 0.05 gp/hp. Less, if we skip rations and use Survival (or Goodberry) like I've got listed on my character sheet.

Edit:
Null - you posted, but not noted; delay approved? I'll assume so for now and mark it on my character sheet.

Oh, and any XP from the session?