We have compiled the details of the most popular WordPress theme clubs, and all-theme developer packages to help you compare and determine if a club membership or theme package deal might be useful for your needs.
Premium WordPress Theme Clubs and All-Theme Developer Packages

	Company	Est.	No. of Themes	Monthly Releases	Initial Price	Recurring Fee	Layered Graphics	Minimum Cost/Theme
	Solostream	2008	23	0.5	$59	$129 / yr	PSD	$2.57
	Graph Paper Press	2007	27	0.6	$49	$99 / $299 yr	-	$1.81
	WooThemes	2008	99	2.4	$125 / $200	$15 / $20 / mth	PSD	$1.26
	Elegant Themes	2008	73	1.7	$39 / $89	$39 / yr	PSD	$0.53
	StudioPress	2009	45	1.3	$299.95	Lifetime Access	PSD elements	$6.67
	iThemes	2008	63	1.3	$387	$387 / yr	-	$6.14
	Templatic	2008	62	1.3	$299	$15 / mth	PSD	$4.82
	WPZOOM	2009	44	1.3	$199 / $299	$9 /$19 / mth	PSD	$4.42
	OboxDesign	2009	29	1.0	$125	$15 / mth	PSD / PNG	$4.31
	Press75	2008	27	0.8	$100	$200 / 6mth	-	$3.70
	Themify	2010	21	1.2	$100 / $150	$10 / $20 / mth	PSD	$4.76
	BizzThemes	2010	22	0.9	$100	$99 / yr	PSD	$4.55
	UpThemes	2010	14	0.6	$99 / $139	$99 / $139 / 6 mth	PSD	$7.07
	RocketTheme	2009	32	1	$75 / $250	$60 / $200 / yr	PSD	$2.78
	NattyWP	2008	33	0.7	$115 / $150	$10 / $20 / mth	PSD	$3.48
	FlexiThemes	2010	14	0.7	$69.90	$69.90 / yr	-	$4.99
	Simple Themes	2010	11	0.5	$49	$99 / yr	PSD	$4.45
	Organic Themes	2010	16	0.7	$249	Lifetime Access	PSD	$15.56
	Viva Themes	2009	35	1.2	$160	N/A	PSD / PNG	$4.57
	Themes Kingdom	2010	22	1.6	$29	$29/yr	PSD	$1.32

Data is correct as of February 2012

Notes
Est.: The year the company was established
No. of Themes: The number of premium (paid) themes the developer currently has. Does not include free themes.
Monthly Releases: The average number of themes released each month since launch.
Initial Price: If two prices are show the first price typically indicates the price of a standard package without source graphics, second price is a developer package that includes source graphics and possibly other options.
Recurring Fee: The recurring club membership charges if any. If two prices shown – the price for the standard and developer options respectively. Lifetime Access means they provides unlimited lifetime access to all current and future themes for the initial price.
Layered Graphics: Whether or not layered graphics are included in the developer package.
Minimum Cost / Theme: The lowest price you would pay for all themes if you joined the cheapest membership option (usually does not include PSD files), downloaded all themes and then cancelled before the first renewal date.

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