I think you need to consider how this will impact your bottom line. Is your cheapness (excuse the pun) your major selling factor i.t.o competitiveness?

Is your 'market share', only the cheap clients? Generally businesses carve out a niche inside their market.

If that above statement is true, you'd probably lose almost all your business.

If you want more money (without losing your client base), add functionality and give them the option to use it (at a price).

I'd say if you already have all or most of the el'cheapos, then cater for them. Make it easier to setup shop and for you to manage them.