hi colhut
All the info above is very true and a must to take on board when
thinking about spending some dollars.
I bought my son a small scope a lot of yearsback and we both got bit by the bug despite the scopes limitations .. a lot of fun was had all the same

to be really honest the 4 mm eyepiece supplied never got used much .
fast forward a decade and I buy a 10 " dob and you know what.. the 4mm
eyepiece supplied dosn't get used either... IMO if your going to buy
something a little better in the eyepiece dept .. look at a magnification that is going to let you enjoy the night sky in a variety of conditions and situations ( middle of the road).
your most welcome to gso 4 mm I don't use if you like
I'll even spring for the postage