Even ordering bulk from places like lucky gunner, .38spec will run you like 30 cents a round, not including shipping.
You can load your own for about 1/2 that:
Order your bullets in bulk, and you can get costs down to 10 cents each. (Order them from Cabela's and have them shipped to the store, and pay no shipping!)
1K small pistol primers are 33 bucks at Cabela's (in store), and a pound of HS-6 (will do for more than 1K rounds) is 26 bucks ....doubtless you can find them cheaper ...., but we'll call it 4 cents for a primer and 3 for powder (TAXES!)
You should already have saved some brass, so it should be free .... but if you did not, back to Cabela's for brass .... about 20 bucks/100 .... that sounds like a a lot, but you should get many, many firings out of it ... say 20 ....so a penny/shot, amortized ....
A hand press kit and a hand priming tool will set you back less than 100 bucks...... and they will fit in a shoe box ..... and will pay for themselves in less than a year's worth of shooting. What's not to like?