375 priced apps appear in the Android Market after one week, are any worth the price?

I currently have just about 50 free applications/utilities loaded on my G1 and receive low memory notifications every day that force me to remove an application or find some data cache to clear to continue working. Thus, at this time I cannot even purchase and install a priced application even if I wanted to. Browsing through the list of 375 priced applications, I cannot honestly say there are any that compel me to make a purchase on my G1 at this time. The fact that I have no real available memory doesn't help either as I am uncertain what will happen if I purchase and then uninstall an application and am not in a position to waste lots of my money right now.

The only two priced applications I have so far, TeleNav GPS Navigator and TouchDown were loaded outside the Android Market.

Some of my favorite applications that give me all the functionality I currently need are available for free and include imeem Mobile, Shazam, ShopSavvy, Twidroid, CadreBible, fBook, PhoneFlix, Skype Lite, Truphone, Last.fm, Opera Mini, and Toggle Settings.

Ed mentioned that he has developed an application and placed it on the Android Market and has seen only 8 sales over the last week.

Have you purchased any applications on the Android Market? If so, what ones do you recommend I consider? Is anyone else experiencing these major low memory issues like me?