If i was a regularly gigging solo performer
I'd consider a 2 tiered sales approach for promotion at gigs..

1. factory pressed & printed CD, [or best quality CDr] at no more than £7 - £10
for anyone in the audience 'impressed' enough to risk purchasing...

2. no frills CDr sampler EP in a simple paper/plastic sleeve
for about 3 or 4 quid [the price of a pint ???],
which includes a reasonable 'discount voucher' redeemable against future purchase
of any proper full CD Album.


might at least cover costs...