MCSA/MCSE Self-paced training kit books

This might sound like a stupid question but I was thinking about getting MCSA/MCSE already even though I might not be taking it for a while. It's $115 on amazon.com. Right now I'm studying for 70-621 and after that I want to take A+, N+ and eventually MCSA/MCSE.
I'm studying for 70-621 and the book doesn't really cover active directory that much or setting up DC or DNS/DHCP. Do you guys think it would be useful to have that books handy? Will the price really go down that much?
http://www.amazon.com/gp/product/0735622906/ref=s9subs_c3_at1-rfc_p?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-2&pf_rd_r=0RFB4S5ZEPYCF4R2R870&pf_rd_t=101&pf_rd_p=278240301&pf_rd_i=507846
I'm studying for 70-621 and the book doesn't really cover active directory that much or setting up DC or DNS/DHCP. Do you guys think it would be useful to have that books handy? Will the price really go down that much?
http://www.amazon.com/gp/product/0735622906/ref=s9subs_c3_at1-rfc_p?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-2&pf_rd_r=0RFB4S5ZEPYCF4R2R870&pf_rd_t=101&pf_rd_p=278240301&pf_rd_i=507846
Going for:N+, MCSA/MCSE.
Comments
CompTIA Network+ March 7, 2008
MCTS Vista 620 June 14, 2008
MCP Server 290 Nov 15, 2008
MCP Server 291 In Progress (Exam 12/28/09)
Cisco CCENT In Progress
MCP Server 291 In Progress
C|EH In Progress
Best of luck on the exam either way
CompTIA Network+ March 7, 2008
MCTS Vista 620 June 14, 2008
MCP Server 290 Nov 15, 2008
MCP Server 291 In Progress (Exam 12/28/09)
Cisco CCENT In Progress
MCP Server 291 In Progress
C|EH In Progress
That's a good price for the books, but you could probably get by without them. If you run dcpromo, it'll setup a DC and DNS for you, and DHCP (at least for what you're doing) would be a no-brainer. They're good books, and if you want them, go for it. I just don't think they're necessary for 621. Any problems you run into could easily be solved with a few google queries or by asking here.
Good luck with your studies
MCSA:03/08/12/16 MCSE:03s/EA08/Core Infra
CCNA