That's a bit pricey
You can actually submit your site by yourself. Proper selection of which directories to submit to and selecting the proper directory for your site. Some pointers that may help you in choosing which directories to submit to:
High PR - indication that Google sees some value in the directory.
Well maintained - listed sites are in the proper category
High Traffic - getting traffic could be minimal form directories, but majority are targeted
Kewords ranking high in SERP - Well optimized, shows that the directory is well-marketed and SEO'ed.
Which to avoid:
Link farms that pose as directories
Directories that require reciprocal links
Crappy ones with crappy sites listed
Surely you could commit to submit your own site to 3 - 5 directories a day
That would definitely save you some $$$.